Electrician and Electronics course is an important basic course for non-electrical engineering majors in universities. The teaching effect of this course has a great influence on the learning and mastery of the follow-up courses and students'practical engineering and product design. Aiming at the problems of the traditional theory teaching of Electrician and Electronics, such as the emptiness and dullness of teaching and the lack of interaction between teachers and students, this paper introduces the rainy classroom intellegent teaching platform in the course teaching. This paper describes the characteristics and application methods of rainy classroom practice from three aspects: pre-class, in-class and after-class. Practice shows that the rainy classroom based on PPT and Weixin mixed with traditional teaching method can realize real-time online interaction between teachers and students, establish a diversified scientific evaluation mechanism, stimulate students' initiative in learning, activate the classroom atmosphere, improve students' enthusiasm in learning, and improve the teaching effect of this course.