Abstract: In order to study the effect of soybean hybrid heterosis and its stability, to further explore the hybrid soybean breeding method. Through analyzed the first and two yield testing results of 2006-2010 different regions identification, the results showed, hybrid soybean varieties had strong heterosis comparison with conventional varieties through 5 years different regions identification, the yield-increasing effect was obvious. Hybrid soybean yield traits with obvious differences, this was decided by hybrid genetic basis that related to hybrid genetic basis of parents and combining ability. The hybrid yield advantage mainly came from the yield characters of three seed pods number, four seed pods number, pod number per plant, seed number per plant, grain yield per plant, number of branches. This provided basis of new hybrid soybean variety breeding, and the same time, pointed out the hybrid soybean different identification of problems and solutions.