diff --git a/src/main/java/com/label/module/source/controller/SourceController.java b/src/main/java/com/label/module/source/controller/SourceController.java
new file mode 100644
index 0000000..d971454
--- /dev/null
+++ b/src/main/java/com/label/module/source/controller/SourceController.java
@@ -0,0 +1,81 @@
+package com.label.module.source.controller;
+
+import com.label.common.result.PageResult;
+import com.label.common.result.Result;
+import com.label.common.shiro.TokenPrincipal;
+import com.label.module.source.dto.SourceResponse;
+import com.label.module.source.service.SourceService;
+import jakarta.servlet.http.HttpServletRequest;
+import lombok.RequiredArgsConstructor;
+import org.apache.shiro.authz.annotation.RequiresRoles;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+/**
+ * 原始资料管理接口。
+ *
+ * 权限设计：
+ * - 上传 / 列表 / 详情：UPLOADER 及以上角色（含 ANNOTATOR、REVIEWER、ADMIN）
+ * - 删除：仅 ADMIN
+ */
+@RestController
+@RequestMapping("/api/source")
+@RequiredArgsConstructor
+public class SourceController {
+
+    private final SourceService sourceService;
+
+    /**
+     * 上传文件（multipart/form-data）。
+     * 返回 201 Created + 资料摘要。
+     */
+    @PostMapping("/upload")
+    @RequiresRoles("UPLOADER")
+    public ResponseEntity<Result<SourceResponse>> upload(
+            @RequestParam("file") MultipartFile file,
+            @RequestParam("dataType") String dataType,
+            HttpServletRequest request) {
+        TokenPrincipal principal = (TokenPrincipal) request.getAttribute("__token_principal__");
+        SourceResponse response = sourceService.upload(file, dataType, principal);
+        return ResponseEntity.status(HttpStatus.CREATED).body(Result.success(response));
+    }
+
+    /**
+     * 分页查询资料列表。
+     * UPLOADER 只见自己的资料；ADMIN 见全公司资料。
+     */
+    @GetMapping("/list")
+    @RequiresRoles("UPLOADER")
+    public Result<PageResult<SourceResponse>> list(
+            @RequestParam(defaultValue = "1") int page,
+            @RequestParam(defaultValue = "20") int pageSize,
+            @RequestParam(required = false) String dataType,
+            @RequestParam(required = false) String status,
+            HttpServletRequest request) {
+        TokenPrincipal principal = (TokenPrincipal) request.getAttribute("__token_principal__");
+        return Result.success(sourceService.list(page, pageSize, dataType, status, principal));
+    }
+
+    /**
+     * 查询资料详情（含 15 分钟预签名下载链接）。
+     */
+    @GetMapping("/{id}")
+    @RequiresRoles("UPLOADER")
+    public Result<SourceResponse> findById(@PathVariable Long id) {
+        return Result.success(sourceService.findById(id));
+    }
+
+    /**
+     * 删除资料（仅 PENDING 状态可删）。
+     * 同步删除 RustFS 文件及 DB 记录。
+     */
+    @DeleteMapping("/{id}")
+    @RequiresRoles("ADMIN")
+    public Result<Void> delete(@PathVariable Long id, HttpServletRequest request) {
+        TokenPrincipal principal = (TokenPrincipal) request.getAttribute("__token_principal__");
+        sourceService.delete(id, principal.getCompanyId());
+        return Result.success(null);
+    }
+}
diff --git a/src/main/java/com/label/module/source/dto/SourceResponse.java b/src/main/java/com/label/module/source/dto/SourceResponse.java
new file mode 100644
index 0000000..418afda
--- /dev/null
+++ b/src/main/java/com/label/module/source/dto/SourceResponse.java
@@ -0,0 +1,27 @@
+package com.label.module.source.dto;
+
+import lombok.Builder;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/**
+ * 资料接口统一响应体（上传、列表、详情均复用此类）。
+ * 各端点按需填充字段，未填充字段序列化时因 jackson non_null 配置自动省略。
+ */
+@Data
+@Builder
+public class SourceResponse {
+    private Long id;
+    private String fileName;
+    private String dataType;
+    private Long fileSize;
+    private String status;
+    /** 上传用户 ID（列表端点返回） */
+    private Long uploaderId;
+    /** 15 分钟预签名下载链接（详情端点返回） */
+    private String presignedUrl;
+    /** 父资料 ID（视频帧 / 文本片段；详情端点返回） */
+    private Long parentSourceId;
+    private LocalDateTime createdAt;
+}
diff --git a/src/main/java/com/label/module/source/entity/SourceData.java b/src/main/java/com/label/module/source/entity/SourceData.java
new file mode 100644
index 0000000..81a342e
--- /dev/null
+++ b/src/main/java/com/label/module/source/entity/SourceData.java
@@ -0,0 +1,56 @@
+package com.label.module.source.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/**
+ * 原始资料实体，对应 source_data 表。
+ *
+ * dataType 取值：TEXT / IMAGE / VIDEO
+ * status 取值：PENDING / PREPROCESSING / EXTRACTING / QA_REVIEW / APPROVED
+ */
+@Data
+@TableName("source_data")
+public class SourceData {
+
+    @TableId(type = IdType.AUTO)
+    private Long id;
+
+    /** 所属公司（多租户键） */
+    private Long companyId;
+
+    /** 上传用户 ID */
+    private Long uploaderId;
+
+    /** 资料类型：TEXT / IMAGE / VIDEO */
+    private String dataType;
+
+    /** RustFS 对象路径 */
+    private String filePath;
+
+    /** 原始文件名 */
+    private String fileName;
+
+    /** 文件大小（字节） */
+    private Long fileSize;
+
+    /** RustFS Bucket 名称 */
+    private String bucketName;
+
+    /** 父资料 ID（视频帧或文本片段的自引用外键） */
+    private Long parentSourceId;
+
+    /** 流水线状态：PENDING / PREPROCESSING / EXTRACTING / QA_REVIEW / APPROVED */
+    private String status;
+
+    /** 保留字段（当前无 REJECTED 状态） */
+    private String rejectReason;
+
+    private LocalDateTime createdAt;
+
+    private LocalDateTime updatedAt;
+}
diff --git a/src/main/java/com/label/module/source/mapper/SourceDataMapper.java b/src/main/java/com/label/module/source/mapper/SourceDataMapper.java
new file mode 100644
index 0000000..c6ea424
--- /dev/null
+++ b/src/main/java/com/label/module/source/mapper/SourceDataMapper.java
@@ -0,0 +1,28 @@
+package com.label.module.source.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.label.module.source.entity.SourceData;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Update;
+
+/**
+ * source_data 表 Mapper。
+ */
+@Mapper
+public interface SourceDataMapper extends BaseMapper<SourceData> {
+
+    /**
+     * 按 ID 更新资料状态（带 company_id 租户隔离）。
+     *
+     * @param id        资料 ID
+     * @param status    新状态
+     * @param companyId 当前租户
+     * @return 影响行数（0 表示记录不存在或不属于当前租户）
+     */
+    @Update("UPDATE source_data SET status = #{status}, updated_at = NOW() " +
+            "WHERE id = #{id} AND company_id = #{companyId}")
+    int updateStatus(@Param("id") Long id,
+                     @Param("status") String status,
+                     @Param("companyId") Long companyId);
+}
diff --git a/src/main/java/com/label/module/source/service/SourceService.java b/src/main/java/com/label/module/source/service/SourceService.java
new file mode 100644
index 0000000..4d42546
--- /dev/null
+++ b/src/main/java/com/label/module/source/service/SourceService.java
@@ -0,0 +1,219 @@
+package com.label.module.source.service;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.label.common.exception.BusinessException;
+import com.label.common.result.PageResult;
+import com.label.common.shiro.TokenPrincipal;
+import com.label.common.storage.RustFsClient;
+import com.label.module.source.dto.SourceResponse;
+import com.label.module.source.entity.SourceData;
+import com.label.module.source.mapper.SourceDataMapper;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * 原始资料业务服务。
+ *
+ * 上传流程：先 INSERT 获取 ID → 构造 RustFS 路径 → 上传文件 → UPDATE filePath。
+ * 删除规则：仅 PENDING 状态可删（防止删除已进入标注流水线的资料）。
+ */
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class SourceService {
+
+    private static final Set<String> VALID_DATA_TYPES = Set.of("TEXT", "IMAGE", "VIDEO");
+    private static final int PRESIGNED_URL_MINUTES = 15;
+
+    private final SourceDataMapper sourceDataMapper;
+    private final RustFsClient rustFsClient;
+
+    @Value("${rustfs.bucket:label-source-data}")
+    private String bucket;
+
+    // ------------------------------------------------------------------ 上传 --
+
+    /**
+     * 上传文件并创建 source_data 记录。
+     *
+     * @param file      上传的文件
+     * @param dataType  资料类型（TEXT / IMAGE / VIDEO）
+     * @param principal 当前登录用户
+     * @return 创建成功的资料摘要
+     */
+    @Transactional
+    public SourceResponse upload(MultipartFile file, String dataType, TokenPrincipal principal) {
+        if (file == null || file.isEmpty()) {
+            throw new BusinessException("FILE_EMPTY", "上传文件不能为空", HttpStatus.BAD_REQUEST);
+        }
+        if (!VALID_DATA_TYPES.contains(dataType)) {
+            throw new BusinessException("INVALID_TYPE", "不支持的资料类型: " + dataType, HttpStatus.BAD_REQUEST);
+        }
+
+        String originalName = file.getOriginalFilename() != null ? file.getOriginalFilename() : "unknown";
+
+        // 1. 先插入占位记录，拿到自增 ID
+        SourceData source = new SourceData();
+        source.setCompanyId(principal.getCompanyId());
+        source.setUploaderId(principal.getUserId());
+        source.setDataType(dataType);
+        source.setFileName(originalName);
+        source.setFileSize(file.getSize());
+        source.setBucketName(bucket);
+        source.setFilePath("");         // 占位，后面更新
+        source.setStatus("PENDING");
+        sourceDataMapper.insert(source);
+
+        // 2. 构造 RustFS 对象路径
+        String objectKey = String.format("%d/%s/%d/%s",
+                principal.getCompanyId(), dataType.toLowerCase(), source.getId(), originalName);
+
+        // 3. 上传文件到 RustFS
+        try {
+            rustFsClient.upload(bucket, objectKey, file.getInputStream(),
+                    file.getSize(), file.getContentType());
+        } catch (IOException e) {
+            log.error("文件上传到 RustFS 失败: bucket={}, key={}", bucket, objectKey, e);
+            throw new BusinessException("UPLOAD_FAILED", "文件上传失败，请重试", HttpStatus.INTERNAL_SERVER_ERROR);
+        }
+
+        // 4. 更新 filePath
+        sourceDataMapper.update(null, new LambdaUpdateWrapper<SourceData>()
+                .eq(SourceData::getId, source.getId())
+                .set(SourceData::getFilePath, objectKey));
+
+        log.debug("资料上传成功: id={}, key={}", source.getId(), objectKey);
+        return toUploadResponse(source, objectKey);
+    }
+
+    // ------------------------------------------------------------------ 列表 --
+
+    /**
+     * 分页查询资料列表。
+     * UPLOADER 只见自己上传的资料；ADMIN 见本公司全部资料（多租户自动过滤）。
+     */
+    public PageResult<SourceResponse> list(int page, int pageSize,
+                                            String dataType, String status,
+                                            TokenPrincipal principal) {
+        pageSize = Math.min(pageSize, 100);
+
+        LambdaQueryWrapper<SourceData> wrapper = new LambdaQueryWrapper<SourceData>()
+                .orderByDesc(SourceData::getCreatedAt);
+
+        // UPLOADER 只能查自己的资料
+        if ("UPLOADER".equals(principal.getRole())) {
+            wrapper.eq(SourceData::getUploaderId, principal.getUserId());
+        }
+        if (dataType != null && !dataType.isBlank()) {
+            wrapper.eq(SourceData::getDataType, dataType);
+        }
+        if (status != null && !status.isBlank()) {
+            wrapper.eq(SourceData::getStatus, status);
+        }
+
+        Page<SourceData> pageResult = sourceDataMapper.selectPage(new Page<>(page, pageSize), wrapper);
+
+        List<SourceResponse> items = pageResult.getRecords().stream()
+                .map(this::toListItem)
+                .collect(Collectors.toList());
+
+        return PageResult.of(items, pageResult.getTotal(), page, pageSize);
+    }
+
+    // ------------------------------------------------------------------ 详情 --
+
+    /**
+     * 按 ID 查询资料详情，含 15 分钟预签名下载链接。
+     */
+    public SourceResponse findById(Long id) {
+        SourceData source = sourceDataMapper.selectById(id);
+        if (source == null) {
+            throw new BusinessException("NOT_FOUND", "资料不存在", HttpStatus.NOT_FOUND);
+        }
+
+        String presignedUrl = null;
+        if (source.getFilePath() != null && !source.getFilePath().isBlank()) {
+            presignedUrl = rustFsClient.getPresignedUrl(bucket, source.getFilePath(), PRESIGNED_URL_MINUTES);
+        }
+
+        return SourceResponse.builder()
+                .id(source.getId())
+                .fileName(source.getFileName())
+                .dataType(source.getDataType())
+                .fileSize(source.getFileSize())
+                .status(source.getStatus())
+                .presignedUrl(presignedUrl)
+                .parentSourceId(source.getParentSourceId())
+                .createdAt(source.getCreatedAt())
+                .build();
+    }
+
+    // ------------------------------------------------------------------ 删除 --
+
+    /**
+     * 删除资料：仅 PENDING 状态可删，同步删除 RustFS 文件。
+     *
+     * @throws BusinessException SOURCE_IN_PIPELINE(409) 资料已进入标注流程
+     */
+    @Transactional
+    public void delete(Long id, Long companyId) {
+        SourceData source = sourceDataMapper.selectById(id);
+        if (source == null) {
+            throw new BusinessException("NOT_FOUND", "资料不存在", HttpStatus.NOT_FOUND);
+        }
+
+        if (!"PENDING".equals(source.getStatus())) {
+            throw new BusinessException("SOURCE_IN_PIPELINE",
+                    "资料已进入标注流程，不可删除（当前状态：" + source.getStatus() + "）",
+                    HttpStatus.CONFLICT);
+        }
+
+        // 先删 RustFS 文件（幂等，不抛异常）
+        if (source.getFilePath() != null && !source.getFilePath().isBlank()) {
+            try {
+                rustFsClient.delete(bucket, source.getFilePath());
+            } catch (Exception e) {
+                log.warn("RustFS 文件删除失败（继续删 DB 记录）: bucket={}, key={}", bucket, source.getFilePath(), e);
+            }
+        }
+
+        sourceDataMapper.deleteById(id);
+        log.debug("资料删除成功: id={}", id);
+    }
+
+    // ------------------------------------------------------------------ 私有工具 --
+
+    private SourceResponse toUploadResponse(SourceData source, String filePath) {
+        return SourceResponse.builder()
+                .id(source.getId())
+                .fileName(source.getFileName())
+                .dataType(source.getDataType())
+                .fileSize(source.getFileSize())
+                .status(source.getStatus())
+                .createdAt(source.getCreatedAt())
+                .build();
+    }
+
+    private SourceResponse toListItem(SourceData source) {
+        return SourceResponse.builder()
+                .id(source.getId())
+                .fileName(source.getFileName())
+                .dataType(source.getDataType())
+                .status(source.getStatus())
+                .uploaderId(source.getUploaderId())
+                .createdAt(source.getCreatedAt())
+                .build();
+    }
+}
diff --git a/src/test/java/com/label/integration/SourceIntegrationTest.java b/src/test/java/com/label/integration/SourceIntegrationTest.java
new file mode 100644
index 0000000..d8d52fd
--- /dev/null
+++ b/src/test/java/com/label/integration/SourceIntegrationTest.java
@@ -0,0 +1,166 @@
+package com.label.integration;
+
+import com.label.AbstractIntegrationTest;
+import com.label.common.redis.RedisKeyManager;
+import com.label.common.redis.RedisService;
+import org.junit.jupiter.api.*;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.core.io.ByteArrayResource;
+import org.springframework.http.*;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * 原始资料管理集成测试（US2）。
+ *
+ * 测试场景：
+ * 1. UPLOADER 上传文本 → 列表仅返回自己的资料
+ * 2. ADMIN 查看列表 → 返回全公司资料
+ * 3. 上传视频 → status = PENDING（视频预处理由 Phase 9 处理）
+ * 4. 已进入流水线的资料删除 → 409 SOURCE_IN_PIPELINE
+ *
+ * 注意：本测试不连接真实 RustFS，上传操作会失败并返回 500/503。
+ * 测试仅验证可访问的业务逻辑（权限、状态机）。
+ * 如需覆盖文件上传，需在测试环境配置 Mock RustFsClient 或启动 MinIO 容器。
+ */
+public class SourceIntegrationTest extends AbstractIntegrationTest {
+
+    private static final String UPLOADER_TOKEN  = "test-uploader-token-source";
+    private static final String UPLOADER2_TOKEN = "test-uploader2-token-source";
+    private static final String ADMIN_TOKEN     = "test-admin-token-source";
+
+    @Autowired
+    private TestRestTemplate restTemplate;
+
+    @Autowired
+    private RedisService redisService;
+
+    @BeforeEach
+    void setupTokens() {
+        // uploader01 token (userId=4 from init.sql seed)
+        redisService.hSetAll(RedisKeyManager.tokenKey(UPLOADER_TOKEN),
+                Map.of("userId", "4", "role", "UPLOADER", "companyId", "1", "username", "uploader01"),
+                3600L);
+        // admin token (userId=1 from init.sql seed)
+        redisService.hSetAll(RedisKeyManager.tokenKey(ADMIN_TOKEN),
+                Map.of("userId", "1", "role", "ADMIN", "companyId", "1", "username", "admin"),
+                3600L);
+    }
+
+    @AfterEach
+    void cleanupTokens() {
+        redisService.delete(RedisKeyManager.tokenKey(UPLOADER_TOKEN));
+        redisService.delete(RedisKeyManager.tokenKey(UPLOADER2_TOKEN));
+        redisService.delete(RedisKeyManager.tokenKey(ADMIN_TOKEN));
+    }
+
+    // ------------------------------------------------------------------ 权限测试 --
+
+    @Test
+    @DisplayName("无 Token 访问上传接口 → 401")
+    void upload_withoutToken_returns401() {
+        ResponseEntity<String> response = restTemplate.postForEntity(
+                baseUrl("/api/source/upload"), null, String.class);
+        assertThat(response.getStatusCode()).isEqualTo(HttpStatus.UNAUTHORIZED);
+    }
+
+    @Test
+    @DisplayName("UPLOADER 访问列表接口（无数据）→ 200，items 为空")
+    void list_uploaderWithNoData_returnsEmptyList() {
+        ResponseEntity<Map> response = restTemplate.exchange(
+                baseUrl("/api/source/list"),
+                HttpMethod.GET,
+                bearerRequest(UPLOADER_TOKEN),
+                Map.class);
+
+        assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
+
+        @SuppressWarnings("unchecked")
+        Map<String, Object> data = (Map<String, Object>) response.getBody().get("data");
+        assertThat(data.get("items")).isInstanceOf(List.class);
+        assertThat(((List<?>) data.get("items"))).isEmpty();
+        assertThat(((Number) data.get("total")).longValue()).isEqualTo(0L);
+    }
+
+    @Test
+    @DisplayName("ADMIN 访问列表接口（无数据）→ 200，items 为空")
+    void list_adminWithNoData_returnsEmptyList() {
+        ResponseEntity<Map> response = restTemplate.exchange(
+                baseUrl("/api/source/list"),
+                HttpMethod.GET,
+                bearerRequest(ADMIN_TOKEN),
+                Map.class);
+
+        assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
+
+        @SuppressWarnings("unchecked")
+        Map<String, Object> data = (Map<String, Object>) response.getBody().get("data");
+        assertThat(((List<?>) data.get("items"))).isEmpty();
+    }
+
+    @Test
+    @DisplayName("删除不存在的资料 → 404")
+    void delete_nonExistentSource_returns404() {
+        ResponseEntity<Map> response = restTemplate.exchange(
+                baseUrl("/api/source/9999"),
+                HttpMethod.DELETE,
+                bearerRequest(ADMIN_TOKEN),
+                Map.class);
+
+        assertThat(response.getStatusCode()).isEqualTo(HttpStatus.NOT_FOUND);
+    }
+
+    @Test
+    @DisplayName("非 ADMIN 删除资料 → 403 Forbidden")
+    void delete_byUploader_returns403() {
+        ResponseEntity<Map> response = restTemplate.exchange(
+                baseUrl("/api/source/9999"),
+                HttpMethod.DELETE,
+                bearerRequest(UPLOADER_TOKEN),
+                Map.class);
+
+        assertThat(response.getStatusCode()).isEqualTo(HttpStatus.FORBIDDEN);
+    }
+
+    @Test
+    @DisplayName("ADMIN 删除已进入流水线的资料 → 409 SOURCE_IN_PIPELINE")
+    void delete_sourceInPipeline_returns409() {
+        // 直接向 DB 插入一条 EXTRACTING 状态的资料（模拟已进入流水线）
+        jdbcTemplate.execute(
+                "INSERT INTO source_data (company_id, uploader_id, data_type, file_path, " +
+                "file_name, file_size, bucket_name, status) " +
+                "VALUES (1, 1, 'TEXT', 'test/path/file.txt', 'file.txt', 100, 'test-bucket', 'EXTRACTING')");
+
+        Long sourceId = jdbcTemplate.queryForObject(
+                "SELECT id FROM source_data WHERE status='EXTRACTING' LIMIT 1", Long.class);
+
+        assertThat(sourceId).isNotNull();
+
+        ResponseEntity<Map> response = restTemplate.exchange(
+                baseUrl("/api/source/" + sourceId),
+                HttpMethod.DELETE,
+                bearerRequest(ADMIN_TOKEN),
+                Map.class);
+
+        assertThat(response.getStatusCode()).isEqualTo(HttpStatus.CONFLICT);
+
+        @SuppressWarnings("unchecked")
+        Map<String, Object> body = response.getBody();
+        assertThat(body.get("code")).isEqualTo("SOURCE_IN_PIPELINE");
+    }
+
+    // ------------------------------------------------------------------ 工具方法 --
+
+    private HttpEntity<Void> bearerRequest(String token) {
+        HttpHeaders headers = new HttpHeaders();
+        headers.set("Authorization", "Bearer " + token);
+        return new HttpEntity<>(headers);
+    }
+}