Abstract: Circuit Theory is a basic course of electrical engineering specialty. Because the teaching objects are international students from all over the world and their theoretical and cultural basis, learning habits are different, it is impossible to implement the circuit theory teaching according to conventional methods. Therefore, corresponding teaching reform has been carried out from teaching content, experimental teaching and teaching methods, and a multi teaching mode based on a WeChat teaching platform called "rain classroom" has been constructed, which have improved the teaching effect of circuit theory for international students.