Abstract: Being the core of leadership of the third generation of our communist party, Jiang Ze-min faces complicated domestic and international affairs since 1990s, insists on "One center, three emphases" while holding up the great theory of Deng Xiao-ping's. He develops gradually the theory of common prosperity with a new strategic viewpoint, and forms new conclusions of ideology according to constant analyses, thus contributes much to the theory of common prosperity.