In 2016，the whole structure of China’s mobile social network was relatively stable. The venture capital boom fell. The major social applications kept spreading with the development of mobile payments，mobile government and mobile-based livelihood services. It brought some changes to the mobile social networks as the new technologies，new applications and new generation of users involved in. With slowdown in the user number increase，the mobile social network products enter the era of stock management. The social network service providers should not only enhance the products’ experience and users’ stickiness，but also assume more responsibility，strengthening the platform ecological construction.