Abstract:It is undoubtedly important to improve the accessibility and dissemination of public information under the environment of "Internet Plus" and to enhance the overall satisfaction of the public with public information services. From the perspective of communication, a systematic study of public information dissemination mode and public access behavior has been conducted. An evolutionary game model of public information dissemination mode and public access under the environment of " Internet Plus " has been constructed, then the stability of equilibrium points under different circumstances has been discussed, and the numerical simulation of the model has been carried out. The results show that, the public information dissemination model and the public's strategy for accessing public information are affected by a variety of factors, which are the increasing and decreasing functions of various factors, and the rising and falling gradient values are obtained. The government will adopt a fractional dissemination strategy and the public will adopt a strategy of acquiring public information, when the government’s extra income under the mode of mass communication is less than under the split-communications mode.