diff --git a/src/main/resources/mybatis/mapper/system/code/CodeMapper_maria.xml b/src/main/resources/mybatis/mapper/system/code/CodeMapper_maria.xml
index f065caa..50ac904 100644
--- a/src/main/resources/mybatis/mapper/system/code/CodeMapper_maria.xml
+++ b/src/main/resources/mybatis/mapper/system/code/CodeMapper_maria.xml
@@ -82,9 +82,7 @@
         from tb_cd_detail d
         join tb_cd_group m on d.CD_GROUP_ID = m.CD_GROUP_ID
         where 1 = 1
-        <if test='selectCdGroupId != null and selectCdGroupId != ""'>
-            and d.CD_GROUP_ID = #{selectCdGroupId}
-        </if>
+          and d.CD_GROUP_ID = #{selectCdGroupId}
         <if test='searchUseYn != null and searchUseYn != ""'>
             and d.USE_YN = #{searchUseYn}
         </if>
diff --git a/src/main/webapp/WEB-INF/views/system/code/integrated/manage.jsp b/src/main/webapp/WEB-INF/views/system/code/integrated/manage.jsp
index 4550113..89d4569 100644
--- a/src/main/webapp/WEB-INF/views/system/code/integrated/manage.jsp
+++ b/src/main/webapp/WEB-INF/views/system/code/integrated/manage.jsp
@@ -290,6 +290,9 @@
                         $("#masterCurrentPage").text(responseObj.data.pagination.page);
                         $("#masterTotalPages").text(responseObj.data.pagination.totalPages);
                     }
+                    //하단 그리드 초기화
+                    CodeIntegratedManage.selectCdGroupId = '';
+                    CodeIntegratedManage.detailGrid.instance.readData(1);
                 });
 
                 // 행 클릭 이벤트
@@ -887,6 +890,7 @@
             // 그룹코드 검색 버튼 클릭 이벤트
             $('#master_search_btn').on('click', function() {
                 self.masterGrid.instance.readData(1);
+
             });
 
             // 그룹코드 perPage 변경 이벤트
@@ -905,6 +909,9 @@
             $('#deleteMasterBtn').on('click', function(e) {
                 e.preventDefault();
                 self.masterGrid.deleteSelectedRows();
+                // 하단 그리드 초기화
+                CodeIntegratedManage.selectCdGroupId = '';
+                self.detailGrid.instance.readData(1);
             });
 
             // 그룹코드 취소 버튼 클릭 이벤트