Abstract: Zhengdan 958 was used as materials to study on the Yield of corn under the different density and the row spacing, the results showed that: The different row spacing and the different density and their interaction make the output to have the very significant differences, Moderately increase the density can increase production，It has falling trend of the yield when expending the row spacing, The yield of erectophile type corn was not only related to planting density but also to the methods of cultivation.