diff --git a/application/controllers/information.php b/application/controllers/information.php
index 8b4987eb..2f566246 100644
--- a/application/controllers/information.php
+++ b/application/controllers/information.php
@@ -113,17 +113,25 @@ class Information extends CI_Controller
     if ($src_is_id == $dest_is_id || empty($src_is_id) || empty($dest_is_id)) {
       return false;
     }
-    //源节点结构
+    // 源节点
     $src = $this->InfoStructures_model->Detail($src_is_id);
     $src_path = $this->Information_model->get_list_by_path($src->is_path, false, $src->is_sitecode);
-    foreach ($src_path as $item) {
+    // 源子节点
+    foreach ($src_path as $n => $item) {
       if ($item->is_id === $src->is_id) {
-        unset($item);
+        unset($src_path[$n]);
       }
     }
     //目标节点结构
     $dest = $this->InfoStructures_model->Detail($dest_is_id);
     $dest_path = $this->Information_model->get_list_by_path($dest->is_path, false, $dest->is_sitecode);
+    // 目标子节点
+    foreach ($dest_path as $n => $item) {
+      if ($item->is_id === $dest->is_id) {
+        unset($dest_path[$n]);
+      }
+    }
+
     print_r($src);
     print_r($src_path);
     print_r($dest);