By analysis of limiting factors on increase of maize production and efficient of water and fertilizer usage in three main maize production areas,main limiting factors for each area were made clear and their contribution ratio was clarified.The results showed that main limiting factors were seasonal drought,soil deteriorate and lag behind of integrated technology,their proportions were 19.0%,16.3% and 23.2%.According to these limiting factors,by improving cultural measures,directed fertilization of high yield land and optimization and integration of cultural techniques,increase of maize production and efficient of water and fertilizer usage can be realized.