diff --git a/backend/src/main/java/com/qqchen/deploy/backend/deploy/api/DeployApiController.java b/backend/src/main/java/com/qqchen/deploy/backend/deploy/api/DeployApiController.java
index da77f359..d3f35f2c 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/deploy/api/DeployApiController.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/deploy/api/DeployApiController.java
@@ -73,8 +73,11 @@ public class DeployApiController {
     @Operation(summary = "获取我的部署审批任务", description = "查询当前登录用户待审批的部署任务，包含完整的部署业务上下文信息")
     @GetMapping("/my-approval-tasks")
     @PreAuthorize("isAuthenticated()")
-    public Response<List<DeployApprovalTaskDTO>> getMyApprovalTasks() {
-        return Response.success(deployService.getMyApprovalTasks());
+    public Response<List<DeployApprovalTaskDTO>> getMyApprovalTasks(
+        @Parameter(description = "工作流定义Key列表（可选，支持查询多个工作流的待审批任务）") 
+        @RequestParam(required = false) List<String> workflowDefinitionKeys
+    ) {
+        return Response.success(deployService.getMyApprovalTasks(workflowDefinitionKeys));
     }
 
     /**
diff --git a/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/IDeployService.java b/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/IDeployService.java
index ff2a653f..6b6993b7 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/IDeployService.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/IDeployService.java
@@ -31,9 +31,10 @@ public interface IDeployService {
      * 获取当前用户的部署审批任务列表
      * <p>查询当前登录用户待审批的部署任务，包含完整的部署业务上下文信息
      *
+     * @param workflowDefinitionKeys 工作流定义Key列表（可选，支持查询多个工作流的待审批任务）
      * @return 部署审批任务列表
      */
-    List<DeployApprovalTaskDTO> getMyApprovalTasks();
+    List<DeployApprovalTaskDTO> getMyApprovalTasks(List<String> workflowDefinitionKeys);
 
     /**
      * 完成部署审批
diff --git a/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/impl/DeployServiceImpl.java b/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/impl/DeployServiceImpl.java
index f585f526..b7b6f863 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/impl/DeployServiceImpl.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/impl/DeployServiceImpl.java
@@ -31,6 +31,7 @@ import org.flowable.engine.RuntimeService;
 import org.flowable.engine.TaskService;
 import org.flowable.engine.runtime.ProcessInstance;
 import org.flowable.task.api.Task;
+import org.flowable.task.api.TaskQuery;
 import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -695,17 +696,31 @@ public class DeployServiceImpl implements IDeployService {
     }
 
     @Override
-    public List<DeployApprovalTaskDTO> getMyApprovalTasks() {
+    public List<DeployApprovalTaskDTO> getMyApprovalTasks(List<String> workflowDefinitionKeys) {
         // 1. 获取当前登录用户
         String currentUsername = SecurityUtils.getCurrentUsername();
-        log.info("查询用户 {} 的部署审批任务", currentUsername);
+        log.info("查询用户 {} 的部署审批任务, workflowDefinitionKeys={}", currentUsername, workflowDefinitionKeys);
 
-        // 2. 查询用户的所有待办任务（包括候选人和分配人，支持或签模式）
-        List<Task> tasks = taskService.createTaskQuery()
+        // 2. 查询用户的部署工作流待办任务（支持多个工作流）
+        TaskQuery taskQuery = taskService.createTaskQuery()
             .taskCandidateOrAssigned(currentUsername)
             .orderByTaskCreateTime()
-            .desc()
-            .list();
+            .desc();
+        
+        // 如果指定了工作流定义Key列表，则精确筛选这些工作流的所有待审批任务
+        if (workflowDefinitionKeys != null && !workflowDefinitionKeys.isEmpty()) {
+            // 过滤掉空字符串
+            List<String> validKeys = workflowDefinitionKeys.stream()
+                .filter(key -> key != null && !key.trim().isEmpty())
+                .collect(Collectors.toList());
+            
+            if (!validKeys.isEmpty()) {
+                taskQuery.processDefinitionKeyIn(validKeys);
+                log.debug("按工作流定义Key列表筛选: {}", validKeys);
+            }
+        }
+        
+        List<Task> tasks = taskQuery.list();
 
         if (tasks.isEmpty()) {
             log.info("用户 {} 当前没有待办审批任务", currentUsername);