Abstract: In order to make good use of the limited water resources, We improved the effectiveness of agricultural water. It’s based on spring corn’s growth, water use efficiency and meteorological observation data in Shiyang rive basin. The effect of climate change on growth and water use efficiency of spring corn were analyzed. The results showed that: the annual change of average temperature was a significant rise in Shiyang rive basin, which linear fitting trend rate was 0.383℃every 10 years. The crop growth season’s (April to October) temperature was significant rising and warming trend. The precipitation in autumn showed a decreasing trend, but the annual precipitation, crop growth season and other seasonal precipitation showed slow wave increased. And the crop growth season precipitation increase of annual precipitation was the biggest contributor in all. By the effects of climate warming, the spring corn’s three leaf stage、jointing stage and blossom period were ahead of 2-3 days every 10 years . But the milk stage and mature stage were after of 1-2 days every 10 years. And the spring growth period was decreased from 2 days to 3 days every 10 years. The autumn reproductive period was increased by 2 days to 3 days every 10 years. As the temperature increased, the water use efficiency of spring corn increased. The influence of temperature on spring corn’s water use efficiency was the positive effect. As the temperature increase by 1℃, spring corn’s water use efficiency increased by 0.46 kg/(hm²·mm) to 0.57 kg/(hm²·mm). While the precipitation’s change on effect of irrigation spring corn’s water use efficiency was the negative effect. precipitation decreased 1 mm, spring corn’s water use efficiency could be increased by 0.19-0.78 kg/(hm²·mm). Along with the sunshine duration fluctuated increasing, the water use efficiency of spring corn showed an obvious increasing trend, which impacted on water use efficiency was the positive effect. As hours of sunshine increased every 10h, the spring corn’s water use efficiency increased by 0.2-0.6 kg/(hm²·mm).