In order to maintain crop yield increasing and improve water use efficiency of crops, the surface irrigation water-saving and biological water-saving of integrated technology were studied in the climate change process. The field spring corn was tested by stages’ sowing and different irrigation methods. The environmental factors and big trumpet period spring corn’s photosynthetic physiology indexes, water use efficiency were measured by LI-6400 portable photosynthesis system in Shiyang River Basin. The effect of different sowing stages and different irrigation methods were analyzed on photosynthetic parameters and water use efficiency of spring corn. The results showed that: drip irrigation could improve the spring corn leaves’ net photosynthetic rate (10%-21%), stomatal conductance (33%-43%) and water use efficiency (12%-20%) of drip irrigation, sprinkler irrigation and flood irrigation in the 3 irrigation methods. Analysis of variance showed that different sowing date effected corn leaf net photosynthetic rate, stomatal conductance and water use efficiency was small. But the second sowing date of net photosynthetic rate than the first and three sowing date increased by 10%-20%, transpiration rate increased by 20%-28%, stomatal conductance increased by 20%-28%. By analyzing significant correlation, that the air temperature, atmospheric CO2 concentration and photosynthetic active radiation which affected drip irrigation’s leaf photosynthetic parameters were major environmental factors, correlation coefficient of 0.810-0.986 (P<0.05). The photosynthetic active radiation and atmospheric CO2 concentration which affected sprinkler irrigation leaf photosynthetic parameters were major environmental factors, correlation coefficient of 0.850-0.980 (P<0.05). The air humidity, temperature and atmospheric CO2 concentration which affected flood irrigation’s photosynthetic parameters and water use efficiency were the main environmental factors, correlation coefficient of 0.969-0.989 (P<0.05). Drip irrigation was the most suitable for arid regions, which could combat drought, save water, save fertilizer and improve yield irrigation method. The second sowing date(April 20th "Guyu before and after") was the most suitable for spring corn sowing period of the three sowing dates.