diff --git a/extend/lbson/src/bson.h b/extend/lbson/src/bson.h
index a2777118..d039f1aa 100644
--- a/extend/lbson/src/bson.h
+++ b/extend/lbson/src/bson.h
@@ -111,7 +111,6 @@ namespace lbson {
         }
 
         int date(lua_State* L, int64_t value) {
-            value = value * 1000;
             return make_bson_value(L, bson_type::BSON_DATE, (const char *)&value, sizeof(value));
         }
 
@@ -191,12 +190,6 @@ namespace lbson {
             return sprintf(str, "%zd", i);
         }
 
-        void write_date(lua_State* L) {
-            lua_getfield(L, -1, "date");
-            m_buffer.write<uint64_t>((lua_tointeger(L, -1) * 1000));
-            lua_pop(L, 1);
-        }
-
         void write_int64(lua_State* L) {
             lua_getfield(L, -1, "value");
             m_buffer.write<uint64_t>(lua_tointeger(L, -1));
@@ -335,8 +328,7 @@ namespace lbson {
                 write_binary(L);
                 break;
             case bson_type::BSON_DATE:
-                write_date(L);
-                break;
+            case bson_type::BSON_INT64:
             case bson_type::BSON_TIMESTAMP:
                 write_int64(L);
                 break;
@@ -499,7 +491,7 @@ namespace lbson {
                     lua_pushinteger(L, read_val<int32_t>(L, slice));
                     break;
                 case bson_type::BSON_DATE:
-                    lua_pushinteger(L, read_val<int64_t>(L, slice) / 1000);
+                    lua_pushinteger(L, read_val<int64_t>(L, slice));
                     break;
                 case bson_type::BSON_INT64:
                 case bson_type::BSON_TIMESTAMP:
diff --git a/script/queue/mongo_mq.lua b/script/queue/mongo_mq.lua
index 479d52cb..cb2aecd0 100644
--- a/script/queue/mongo_mq.lua
+++ b/script/queue/mongo_mq.lua
@@ -60,7 +60,7 @@ function MongoMQ:send_message(target_id, event, args, ttl)
     local doc = { args = args, event = event, target_id = target_id, time = quanta.now_ms, uuid = new_guid() }
     if ttl then
         --设置过期ttl字段
-        doc.ttl = bdate(quanta.now + ttl)
+        doc.ttl = bdate(quanta.now_ms + ttl * 1000)
     end
     local ok = mongo_agent:insert({ self.coll_name, doc }, target_id)
     if not ok then