The use of wechat platform to assist high school mathematics teaching conforms to the development of the Times, but the implementation of this teaching model puts forward higher requirements for teachers'professional quality. As a high school mathematics teacher, not only must promote the specialized theoretical knowledge, but also must diligently study and master the modern teaching technology, adapts the informationization education to bring the teaching and the teaching method change, fully utilizes the informationization tool superiority, promoting the effective development of mathematics teaching in Senior High School.