diff --git a/hikyuu/data/pytdx_to_h5.py b/hikyuu/data/pytdx_to_h5.py
index aac33e88..fdcf65cc 100644
--- a/hikyuu/data/pytdx_to_h5.py
+++ b/hikyuu/data/pytdx_to_h5.py
@@ -287,7 +287,7 @@ def import_one_stock_data(connect, api, h5file, market, ktype, stock_record, sta
             if today_datetime >= bar_datetime > last_datetime \
                     and bar['high'] >= bar['open'] >= bar['low'] > 0 \
                     and bar['high'] >= bar['close'] >= bar['low'] > 0 \
-                    and int(bar['vol']) != 0 and int(bar['amount']*0.001) != 0:
+                    and int(bar['vol']) >= 0 and int(bar['amount']*0.001) >= 0:
                 try:
                     row['datetime'] = bar_datetime
                     row['openPrice'] = bar['open'] * 1000