diff --git a/src/main/resources/static/assets/js/project_budget_cost.js b/src/main/resources/static/assets/js/project_budget_cost.js
index 1531c3f..619da2a 100644
--- a/src/main/resources/static/assets/js/project_budget_cost.js
+++ b/src/main/resources/static/assets/js/project_budget_cost.js
@@ -147,7 +147,7 @@ function bindOtherOtherChangeable() {
     });
 }
 
-SELECT_DATA={
+SELECT_TYPE_CATEGORY_MAP_DATA={
     "1":[
         {
             "value":"1",
@@ -190,17 +190,37 @@ SELECT_DATA={
     ]
 };
 
+SELECT_CATEGORY_TYPE_MAP_DATA={
+    "1":"1",
+    "2":"1",
+    "3":"1",
+    "4":"2",
+    "5":"3",
+    "6":"3",
+    "7":"3",
+    "8":"4"
+};
+
 /**
  * 大类类别联动效果
  */
 function bindTypeSelectChange() {
+    //大类变化联动类别
     $(".am-modal-prompt-input-cost-type").on('change',function () {
         var categorySelect = $(this).parent().parent().find(".am-modal-prompt-input-cost-category");
         var type = $(this).val();
+        //删除后重新添加对应的类别
         categorySelect.empty();
-        SELECT_DATA[type].forEach(function (d) {
+        SELECT_TYPE_CATEGORY_MAP_DATA[type].forEach(function (d) {
             categorySelect.append("<option value='"+d.value+"'>"+d.name+"</option>");
         })
     });
+    //类别变化联动大类
+    $(".am-modal-prompt-input-cost-category").on('change',function () {
+        var typeSelect = $(this).parent().parent().find(".am-modal-prompt-input-cost-type");
+        var category = $(this).val();
+        //设置他选中类别对应的大类
+        typeSelect.val(SELECT_CATEGORY_TYPE_MAP_DATA[category]);
+    });
 }