diff --git a/module/execution/model.php b/module/execution/model.php
index dbec1f4d5d..ed446ba683 100644
--- a/module/execution/model.php
+++ b/module/execution/model.php
@@ -2024,6 +2024,8 @@ class executionModel extends model
             $data->product = $productID;
             $data->branch  = $branch;
             $data->plan    = isset($plans[$productID][$branch]) ? implode(',', $plans[$productID][$branch]) : $oldPlan;
+            $data->plan    = trim($data->plan, ',');
+            $data->plan    = empty($data->plan) ? 0 : ",$data->plan,";
             $this->dao->insert(TABLE_PROJECTPRODUCT)->data($data)->exec();
             $existedProducts[$productID][$branch] = true;
         }