diff --git a/learnware/market/easy.py b/learnware/market/easy.py
index 979734c..42827b2 100644
--- a/learnware/market/easy.py
+++ b/learnware/market/easy.py
@@ -244,6 +244,9 @@ class EasyMarket(BaseMarket):
         learnware_num = len(learnware_list)
         if learnware_num == 0:
             return [], []
+        if learnware_num <  search_num:
+            logger.warning("Available Learnware num less than search_num")
+            search_num = learnware_num
 
         flag_list = [0 for i in range(learnware_num)]
         mixture_list = []