diff --git a/webapp/controller/OutAppPlanetController.class.php b/webapp/controller/OutAppPlanetController.class.php
index 058df113..4980e4bb 100644
--- a/webapp/controller/OutAppPlanetController.class.php
+++ b/webapp/controller/OutAppPlanetController.class.php
@@ -11,6 +11,10 @@ use services\BlockChainService;
 
 class OutAppPlanetController extends BaseController {
 
+    const BEGIN_TOKEN_ID = 280001;
+    const END_TOKEN_ID = 280300;
+    const PRICE = 1;
+
     public function buy()
     {
         $netId = getReqVal('net_id', '');
@@ -39,8 +43,8 @@ class OutAppPlanetController extends BaseController {
                     'SELECT * FROM t_nft WHERE token_type=:token_type AND creator_address = owner_address AND token_id >= :begin_token_id AND token_id <= :end_token_id;',
                     array(
                         ':token_type' => Nft::PLANET_TYPE,
-                        ':begin_token_id' => 0,
-                        ':end_token_id' => 0
+                        ':begin_token_id' => self::BEGIN_TOKEN_ID,
+                        ':end_token_id' => self::END_TOKEN_ID
                     )
                 );
             $nftList = array();
@@ -59,7 +63,7 @@ class OutAppPlanetController extends BaseController {
                 $data[$nftList] = myself()->_getNowTime();
             }
         }
-        $price = BlockChainService::formatCurrencyEx(1 * count($ids), $decimals);
+        $price = BlockChainService::formatCurrencyEx(self::PRICE * count($ids), $decimals);
         $rspObj = BlockChainService::beNftMallTransBuyPlanet(
             Transaction::BUY_OUTAPP_PLANET_ACTION_TYPE,
             $address,