diff --git a/app/Models/Project.php b/app/Models/Project.php
index 599f08b20..ad2e78c18 100644
--- a/app/Models/Project.php
+++ b/app/Models/Project.php
@@ -419,6 +419,7 @@ class Project extends AbstractModel
             $hasStart = false;
             $hasEnd = false;
             $upTaskList = [];
+            $projectUserids = $this->relationUserids();
             foreach ($flows as $item) {
                 $id = intval($item['id']);
                 $turns = Base::arrayRetainInt($item['turns'] ?: [], true);
@@ -435,6 +436,12 @@ class Project extends AbstractModel
                 if ($userlimit && empty($userids)) {
                     throw new ApiException("状态[{$item['name']}]设置错误，设置限制负责人时必须填写状态负责人");
                 }
+                foreach ($userids as $userid) {
+                    if (!in_array($userid, $projectUserids)) {
+                        $nickname = User::userid2nickname($userid);
+                        throw new ApiException("状态[{$item['name']}]设置错误，状态负责人[{$nickname}]不在项目成员内");
+                    }
+                }
                 $flow = ProjectFlowItem::updateInsert([
                     'id' => $id,
                     'project_id' => $this->id,
diff --git a/app/Models/ProjectTask.php b/app/Models/ProjectTask.php
index ef682aba8..3a34b95b3 100644
--- a/app/Models/ProjectTask.php
+++ b/app/Models/ProjectTask.php
@@ -618,7 +618,12 @@ class ProjectTask extends AbstractModel
                         $data['complete_at'] = false;
                     }
                 }
-                if ($newFlowItem->userids) {
+                $flowUserids = $newFlowItem->userids;
+                if ($flowUserids) {
+                    // 确认负责人在任务中
+                    $flowUserids = ProjectUser::whereProjectId($this->project_id)->whereIn('userid', $flowUserids)->pluck('userid')->toArray();
+                }
+                if ($flowUserids) {
                     // 判断自动添加负责人
                     $flowData['owner'] = $data['owner'] = $this->taskUser->where('owner', 1)->pluck('userid')->toArray();
                     if (in_array($newFlowItem->usertype, ["replace", "merge"])) {
@@ -627,14 +632,14 @@ class ProjectTask extends AbstractModel
                             $flowData['assist'] = $data['assist'] = $this->taskUser->where('owner', 0)->pluck('userid')->toArray();
                             $data['assist'] = array_merge($data['assist'], $data['owner']);
                         }
-                        $data['owner'] = $newFlowItem->userids;
+                        $data['owner'] = $flowUserids;
                         // 判断剔除模式：保留操作状态的人员
                         if ($newFlowItem->usertype == "merge") {
                             $data['owner'][] = User::userid();
                         }
                     } else {
                         // 添加模式
-                        $data['owner'] = array_merge($data['owner'], $newFlowItem->userids);
+                        $data['owner'] = array_merge($data['owner'], $flowUserids);
                     }
                     $data['owner'] = array_values(array_unique($data['owner']));
                     if (isset($data['assist'])) {