Heterogeneous wireless network selection is considered as one of the key technologies to utilize the network resources in next generation communication networks. In this paper, we propose a network selection scheme with multiple traffics based on analytic hierarchy process (AHP) and evolutionary game. The utility function used in this paper is designed as a compromise between available capacity and other network attributes. After analyzing the dynamics of populations' behavior, the existence of evolutionary equilibrium is analyzed and proved by simulations. Simulations show that our scheme has a better performance of per-user switchings than the commonly used AHP scheme.