diff --git a/collection/opendb-sms-task/collection.json b/collection/opendb-sms-task/collection.json
index a789dc7..2db218c 100644
--- a/collection/opendb-sms-task/collection.json
+++ b/collection/opendb-sms-task/collection.json
@@ -42,15 +42,19 @@
             "properties": {
               "all": {
                 "bsonType": "bool",
-                "description": "全部用户发送"
+                "description": "全部用户发送；字段废弃，由 condition 替代"
               },
               "type": {
                 "bsonType": "string",
-                "description": "to.all=true时用来区分发送类型, 可选值 user | userTags"
+                "description": "可选值 user | userTags"
               },
               "receiver": {
                 "bsonType": "array",
-                "description": "用户ID's \/ 用户标签ID's"
+                "description": "用户ID's \/ 用户标签ID's；指定id发送"
+              },
+              "condition": {
+                "bsonType": "object",
+                "description": "根据条件发送，例如给所有人发送"
               }
             }
           },
@@ -76,4 +80,4 @@
         }
     },
     "index": []
-}
\ No newline at end of file
+}