According to panel data of corn production cost in 15 main corn planting provinces of China during 2006—2011，by using stochastic frontier production function， corn production technical efficiency is calculated， and the results show that average technical efficiency of corn production in 15 main corn planting provinces is 78.5 percent，that the factor input such as labor and so on has reverse influence on technical efficiency of corn production，however，the factors such as corn price，irrigation and so on have positive influence，that there is big difference of corn production technical efficiency among all provinces，for example，corn production efficiency in Heilongjiang，Jilin，Inner Mongolia and so on is highest，the efficiency in Liaoning，Shandong，Henan and so on is second，the efficiency in Sichuan，Guizhou，Hubei and so on is lowest，which demonstrates the strong difference between the north and the south. Thus，in the development of corn industry，China should change from main factor input to main technical efficiency upgrading，push forward regional specialized corn planting on a large scale by the paths such as developing specialized cooperatives and so on，perfect price support system to consolidate the boosting effect on corn production by price，and make efforts to promote corn irrigation efficiency.