Abstract: Based on climate condition in Yanchi County, six maize varieties were introduced in the test. The result showed that, there were no significant differences between Tunyu No.1, Zhengdan 958, Zhongdan 5485 and control group, and adapt to local growing conditions, so they could be regarded as the spreading variety in the area. Although Danyu No.3 profit high, air-dry moisture content was 74.3%, which meet the requirement of silage in the growth period, so it could be regarded as the silage crop spreading variety in the area.