diff --git a/module/stage/lang/en.php b/module/stage/lang/en.php
index b6bbde87ad..1d7d97afbf 100644
--- a/module/stage/lang/en.php
+++ b/module/stage/lang/en.php
@@ -39,3 +39,4 @@ $lang->stage->confirmDelete = 'Do you want to delete it?';
 
 $lang->stage->error              = new stdclass();
 $lang->stage->error->percentOver = 'The sum of "Workload %" cannot exceed 100%.';
+$lang->stage->error->notNum      = 'The workload ratio should be numerical';
diff --git a/module/stage/lang/zh-cn.php b/module/stage/lang/zh-cn.php
index 7488050136..93141532d0 100644
--- a/module/stage/lang/zh-cn.php
+++ b/module/stage/lang/zh-cn.php
@@ -37,5 +37,6 @@ $lang->stage->viewList      = '浏览列表';
 $lang->stage->noStage       = '暂时没有阶段';
 $lang->stage->confirmDelete = '您确定要执行删除操作吗？';
 
-$lang->stage->error                  = new stdclass();
-$lang->stage->error->percentOver     = '工作量占比累计不应当超过100%';
+$lang->stage->error              = new stdclass();
+$lang->stage->error->percentOver = '工作量占比累计不应当超过100%';
+$lang->stage->error->notNum      = '工作量占比应当是数字';
diff --git a/module/stage/model.php b/module/stage/model.php
index 53017e7b25..46ee238d57 100644
--- a/module/stage/model.php
+++ b/module/stage/model.php
@@ -28,6 +28,7 @@ class stageModel extends model
 
         $totalPercent = $this->getTotalPercent();
 
+        if(!is_numeric($stage->percent)) return dao::$errors['message'][] = $this->lang->stage->error->notNum;
         if(round($totalPercent + $stage->percent) > 100) return dao::$errors['message'][] = $this->lang->stage->error->percentOver;
 
         $this->dao->insert(TABLE_STAGE)