diff --git a/application/api/controller/Production.php b/application/api/controller/Production.php
index bc31528..de53f3d 100644
--- a/application/api/controller/Production.php
+++ b/application/api/controller/Production.php
@@ -1568,6 +1568,23 @@ class Production extends Base
             return jsonError($rule->getError());
         }
         $old_article_author_info = $this->production_article_author_obj->where('p_article_author_id', $data['p_article_author_id'])->find();
+
+        //判断邮箱是否重复 chengxiaoling   20250926 start
+        if(empty($old_article_author_info)){
+            return jsonError('Author information does not exist');
+        }
+        $iPArticleId = empty($old_article_author_info['p_article_id']) ? 0 : $old_article_author_info['p_article_id'];
+        $sEmail = empty($data['email']) ? '' : $data['email'];
+        $iAuthorId = empty($old_article_author_info['p_article_author_id']) ? 0 : $old_article_author_info['p_article_author_id'];
+        if(!empty($sEmail) && !empty($iPArticleId)){
+            $aWhere = ['p_article_id' => $iPArticleId,'email' => $sEmail,'state' => 0,'p_article_author_id' => ['<>',$iAuthorId]];
+            $aAuthor = $this->production_article_author_obj->field('p_article_author_id')->where($aWhere)->find();
+            if(!empty($aAuthor)){
+                return jsonError("Email has been bound by another author");
+            }
+        }
+        //判断邮箱是否重复 chengxiaoling   20250926 end
+        
         $article_info = $this->article_obj->where('article_id', $old_article_author_info['article_id'])->find();
         $updata['author_name'] = $article_info['journal_id'] == 21 ? trim($data['last_name']) . trim($data['first_name']) : trim($data['first_name']) . ' ' . trim($data['last_name']);
         $updata['first_name'] = trim($data['first_name']);
@@ -1657,6 +1674,19 @@ class Production extends Base
         $p_info = $this->production_article_obj->where('p_article_id', $data['p_article_id'])->find();
         $article_info = $this->article_obj->where('article_id', $p_info['article_id'])->find();
 
+
+        //判断邮箱是否重复 chengxiaoling   20250926 start
+        $iPArticleId = empty($data['p_article_id']) ? 0 : $data['p_article_id'];
+        $sEmail = empty($data['email']) ? '' : $data['email'];
+        if(!empty($sEmail) && !empty($iPArticleId)){
+            $aWhere = ['p_article_id' => $iPArticleId,'email' => $sEmail,'state' => 0];
+            $aAuthor = $this->production_article_author_obj->field('p_article_author_id')->where($aWhere)->find();
+            if(!empty($aAuthor)){
+                return jsonError("Email has been bound by another author");
+            }
+        }
+        //判断邮箱是否重复 chengxiaoling   20250926 end
+
         $insert['p_article_id'] = $data['p_article_id'];
         $insert['article_id'] = $p_info['article_id'];
         $insert['author_name'] = $article_info['journal_id'] == 21 ? trim($data['last_name']) . trim($data['first_name']) : trim($data['first_name']) . ' ' . trim($data['last_name']);