Abstract: In order to investigate the high-yield ability, yield stability and site discriminability of the varieties and sites in national regional trial of soybean in Huang- Huai- Hai Area, promote soybean breeding and extension work of this area, the yields of 17 varieties (lines) in 8 test sites were analyzed by AMMI model. The results showed that, the varieties (g), test sites (E), the variety × test sites (g×E) interaction and the interaction effect of principal component values (IPCA) reached extremely significant level. The first three varieties of high yield were‘SFy0803’ ,‘Zhong huang 37’ ,‘Cang dou 11’and the first three varieties of yield stability were‘Han dou No. 5’ ,‘Cang dou11’ ,‘Zhong zuo J8032’. The first three sites of discriminability were Linfen, Linyi, Weifang. The r values between Di of different sites and longitude/latitude, average temperature, precipitation and sunshine in the growth period were not significant.