diff --git a/src/main/java/com/bicloud/controller/LiteratureController.java b/src/main/java/com/bicloud/controller/LiteratureController.java
index ffc6840..5716138 100644
--- a/src/main/java/com/bicloud/controller/LiteratureController.java
+++ b/src/main/java/com/bicloud/controller/LiteratureController.java
@@ -3,8 +3,8 @@ package com.bicloud.controller;
 import com.bicloud.common.result.PageResult;
 import com.bicloud.common.result.Result;
 import com.bicloud.pojo.dto.LiteratureCreateDto;
-import com.bicloud.pojo.dto.LiteratureDto;
 import com.bicloud.pojo.dto.LiteraturePageQueryDto;
+import com.bicloud.pojo.vo.DocumentTypeVo;
 import com.bicloud.pojo.vo.LiteratureListVo;
 import com.bicloud.service.LiteratureService;
 import io.swagger.v3.oas.annotations.Operation;
@@ -13,6 +13,8 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
+
 @CrossOrigin
 @RestController
 @RequestMapping("/literature")
@@ -51,4 +53,12 @@ public class LiteratureController {
         PageResult<LiteratureListVo> result = literatureService.pageQuery(queryDTO);
         return Result.success(result);
     }
+
+    // 文献分类下拉框（document_type）
+    @GetMapping("/types")
+    @Operation(summary = "获取文献分类下拉列表")
+    public Result<List<DocumentTypeVo>> types() {
+        return Result.success(literatureService.listTypes());
+    }
+
 }
diff --git a/src/main/java/com/bicloud/mapper/LiteratureMapper.java b/src/main/java/com/bicloud/mapper/LiteratureMapper.java
index 78f03cc..39384df 100644
--- a/src/main/java/com/bicloud/mapper/LiteratureMapper.java
+++ b/src/main/java/com/bicloud/mapper/LiteratureMapper.java
@@ -2,10 +2,13 @@ package com.bicloud.mapper;
 
 import com.bicloud.pojo.dto.LiteratureCreateDto;
 import com.bicloud.pojo.dto.LiteraturePageQueryDto;
+import com.bicloud.pojo.vo.DocumentTypeVo;
 import com.bicloud.pojo.vo.LiteratureListVo;
 import com.github.pagehelper.Page;
 import org.apache.ibatis.annotations.Mapper;
 
+import java.util.List;
+
 @Mapper
 public interface LiteratureMapper {
 
@@ -17,4 +20,7 @@ public interface LiteratureMapper {
 
     // 分页查询：返回列表VO（PageHelper自动分页）
     Page<LiteratureListVo> pageQuery(LiteraturePageQueryDto queryDTO);
+
+    // 获取文献分类
+    List<DocumentTypeVo> listTypes();
 }
diff --git a/src/main/java/com/bicloud/pojo/dto/LiteraturePageQueryDto.java b/src/main/java/com/bicloud/pojo/dto/LiteraturePageQueryDto.java
index 125040c..c6870a9 100644
--- a/src/main/java/com/bicloud/pojo/dto/LiteraturePageQueryDto.java
+++ b/src/main/java/com/bicloud/pojo/dto/LiteraturePageQueryDto.java
@@ -1,26 +1,26 @@
-package com.bicloud.pojo.dto;
+    package com.bicloud.pojo.dto;
 
-import lombok.Data;
+    import lombok.Data;
 
-import java.math.BigDecimal;
+    import java.math.BigDecimal;
 
-/**
- * 列表页筛选 + 分页参数
- */
-@Data
-public class LiteraturePageQueryDto {
+    /**
+     * 列表页筛选 + 分页参数
+     */
+    @Data
+    public class LiteraturePageQueryDto {
 
-    private Integer page;
-    private Integer pageSize;
+        private Integer page;
+        private Integer pageSize;
 
-    private Integer year;          // YEAR(publish_time)
-    private String docTitle;       // 文章标题（模糊）
-    private String publication;    // 期刊名称（模糊）
-    private String techniques;     // 样品来源（模糊）
-    private Integer docType;       // 文献分类（类型ID，下拉建议传这个）
+        private Integer year;          // YEAR(publish_time)
+        private String docTitle;       // 文章标题（模糊）
+        private String publication;    // 期刊名称（模糊）
+        private String techniques;     // 样品来源（模糊）
+        private Integer docType;       // 文献分类（类型ID，下拉建议传这个）
 
-    private String keyword;        // 关键字搜索（可选：对标题/期刊/作者/简介做模糊）
+        private String keyword;        // 关键字搜索（可选：对标题/期刊/作者/简介做模糊）
 
-    private BigDecimal impactFactorMin; // IF最小值
-    private BigDecimal impactFactorMax; // IF最大值
-}
+        private BigDecimal impactFactorMin; // IF最小值
+        private BigDecimal impactFactorMax; // IF最大值
+    }
diff --git a/src/main/java/com/bicloud/pojo/vo/DocumentTypeVo.java b/src/main/java/com/bicloud/pojo/vo/DocumentTypeVo.java
new file mode 100644
index 0000000..f0c5e4f
--- /dev/null
+++ b/src/main/java/com/bicloud/pojo/vo/DocumentTypeVo.java
@@ -0,0 +1,12 @@
+package com.bicloud.pojo.vo;
+
+import lombok.Data;
+
+/**
+ * 文献分类（document_type）下拉项
+ */
+@Data
+public class DocumentTypeVo {
+    private Integer id;
+    private String name;
+}
diff --git a/src/main/java/com/bicloud/pojo/vo/LiteratureListVo.java b/src/main/java/com/bicloud/pojo/vo/LiteratureListVo.java
index 8eb5133..96a0228 100644
--- a/src/main/java/com/bicloud/pojo/vo/LiteratureListVo.java
+++ b/src/main/java/com/bicloud/pojo/vo/LiteratureListVo.java
@@ -8,11 +8,12 @@ import lombok.Data;
 @Data
 public class LiteratureListVo {
 
-    private Long id;               // 隐藏id（用于操作）
-    private Integer year;          // 年份：由 YEAR(publish_time) 计算得到
+    private Long id;               // 隐藏id
+    private Integer year;          // 年份
     private String docTitle;       // 文章标题
     private String publication;    // 期刊
     private String impactFactor;   // IF（varchar原样返回，避免精度/格式问题）
     private String techniques;     // 样品来源（先用 techniques）
-    private String typeName;       // 文献分类名（来自 biology_document_type.name）
+    private String typeName;       // 文献分类名
+    private String docUrl;        //链接
 }
diff --git a/src/main/java/com/bicloud/service/LiteratureService.java b/src/main/java/com/bicloud/service/LiteratureService.java
index 4d49b12..573588d 100644
--- a/src/main/java/com/bicloud/service/LiteratureService.java
+++ b/src/main/java/com/bicloud/service/LiteratureService.java
@@ -3,8 +3,11 @@ package com.bicloud.service;
 import com.bicloud.common.result.PageResult;
 import com.bicloud.pojo.dto.LiteratureCreateDto;
 import com.bicloud.pojo.dto.LiteraturePageQueryDto;
+import com.bicloud.pojo.vo.DocumentTypeVo;
 import com.bicloud.pojo.vo.LiteratureListVo;
 
+import java.util.List;
+
 public interface LiteratureService {
 
     // 新增文献（写入 biology_document_info）
@@ -15,4 +18,7 @@ public interface LiteratureService {
 
     // 分页查询（返回列表VO）
     PageResult<LiteratureListVo> pageQuery(LiteraturePageQueryDto queryDTO);
+
+    // 获取文献分类下拉列表
+    List<DocumentTypeVo> listTypes();
 }
diff --git a/src/main/java/com/bicloud/service/impl/LiteratureServiceImpl.java b/src/main/java/com/bicloud/service/impl/LiteratureServiceImpl.java
index 42c1009..7024138 100644
--- a/src/main/java/com/bicloud/service/impl/LiteratureServiceImpl.java
+++ b/src/main/java/com/bicloud/service/impl/LiteratureServiceImpl.java
@@ -4,6 +4,7 @@ import com.bicloud.common.result.PageResult;
 import com.bicloud.mapper.LiteratureMapper;
 import com.bicloud.pojo.dto.LiteratureCreateDto;
 import com.bicloud.pojo.dto.LiteraturePageQueryDto;
+import com.bicloud.pojo.vo.DocumentTypeVo;
 import com.bicloud.pojo.vo.LiteratureListVo;
 import com.bicloud.service.LiteratureService;
 import com.github.pagehelper.Page;
@@ -11,6 +12,8 @@ import com.github.pagehelper.PageHelper;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+
 @Service
 public class LiteratureServiceImpl implements LiteratureService {
 
@@ -45,4 +48,10 @@ public class LiteratureServiceImpl implements LiteratureService {
         // 4) 取 total + records
         return new PageResult<>(p.getTotal(), p.getResult());
     }
+
+    @Override
+    public List<DocumentTypeVo> listTypes() {
+        return literatureMapper.listTypes();
+    }
+
 }
diff --git a/src/main/resources/mapper/LiteratureMapper.xml b/src/main/resources/mapper/LiteratureMapper.xml
index a4ddb2f..74a9f86 100644
--- a/src/main/resources/mapper/LiteratureMapper.xml
+++ b/src/main/resources/mapper/LiteratureMapper.xml
@@ -36,7 +36,8 @@
         d.publication   AS publication,
         d.impact_factor AS impactFactor,
         d.techniques    AS techniques,
-        t.name          AS typeName
+        t.name          AS typeName,
+        d.doc_url       AS docUrl
         FROM biology_document_info d
         LEFT JOIN biology_document_type t
         ON t.id = d.doc_type
@@ -92,4 +93,16 @@
         ORDER BY d.id DESC
     </select>
 
+    <!-- 文献分类（document_type）下拉列表 -->
+    <select id="listTypes" resultType="com.bicloud.pojo.vo.DocumentTypeVo">
+        SELECT
+            id,
+            name
+        FROM biology_document_type
+        WHERE removed = '0'
+        ORDER BY position ASC, id ASC
+    </select>
+
+
+
 </mapper>