Mathematics wechat public platform is conducive to cooperation between students to learn and help each other, the exchange of information and ideas. WECHAT is a free software, users only need to provide communication costs can be real-time communication, so for the student community is very practical. Through the wechat platform, students can better communication, learning, for teachers to explain the difficulties of each other, a common breakthrough. The sharing of information wechat for the majority of students to provide a broad platform, so that students can be able to communicate without leaving home.