diff --git a/src/main/java/com/dsideal/QingLong/DataShare/Controller/DataShareController.java b/src/main/java/com/dsideal/QingLong/DataShare/Controller/DataShareController.java
index 007a8791..f0f08496 100644
--- a/src/main/java/com/dsideal/QingLong/DataShare/Controller/DataShareController.java
+++ b/src/main/java/com/dsideal/QingLong/DataShare/Controller/DataShareController.java
@@ -7,7 +7,6 @@ import com.dsideal.QingLong.DataShare.Model.DataShareModel;
 import com.dsideal.QingLong.Interceptor.*;
 import com.dsideal.QingLong.Util.AsposeUtil;
 import com.dsideal.QingLong.Util.CommonUtil;
-import com.dsideal.QingLong.Util.PgUtil;
 import com.jfinal.aop.Before;
 import com.jfinal.core.Controller;
 import com.jfinal.ext.interceptor.GET;
diff --git a/src/main/java/com/dsideal/QingLong/DataShare/Model/DataShareModel.java b/src/main/java/com/dsideal/QingLong/DataShare/Model/DataShareModel.java
index d594f927..63e4bafd 100644
--- a/src/main/java/com/dsideal/QingLong/DataShare/Model/DataShareModel.java
+++ b/src/main/java/com/dsideal/QingLong/DataShare/Model/DataShareModel.java
@@ -61,10 +61,32 @@ public class DataShareModel {
      * @param system_id
      */
     public void delSystem(int system_id) {
-        //此系统的用户
+        //1、删除此系统的用户
         String user_name = getSystemById(system_id).getStr("user_name");
         PgUtil.delUser(user_name);
+        //2、删除数据表记录
         Db.deleteById("t_datashare_system", "system_id", system_id);
+        //3、删除此系统共享表
+        String sql = "delete from t_datashare_table where system_id=?";
+        Db.update(sql, system_id);
+        //4、删除所有其它系统对此系统的订阅
+        sql = "select * from t_datashare_system";
+        List<Record> list = Db.find(sql);
+        for (Record record : list) {
+            int sub_system_id = record.getInt("system_id");
+            String subscribe_system_ids = record.getStr("subscribe_system_ids");
+            String new_subscribe_system_ids = "";
+            if (!StrKit.isBlank(subscribe_system_ids)) {
+                for (String s : subscribe_system_ids.split(",")) {
+                    if (!s.equals(system_id + "")) new_subscribe_system_ids += s + ",";
+                }
+            }
+            if (!new_subscribe_system_ids.isEmpty()) {
+                new_subscribe_system_ids = new_subscribe_system_ids.substring(0, new_subscribe_system_ids.length() - 1);//去最后的逗号
+            }
+            sql = "update t_datashare_system set subscribe_system_ids=? where system_id=?";
+            Db.update(sql, new_subscribe_system_ids, sub_system_id);
+        }
     }
 
     /**