Abstract: Due to the complex knowledge, traditional classroom teaching of physical chemistry course can not grasp the students' learning situation and students' learning enthusiasm is not high, so that the teaching effect is not ideal. In order to improve the teaching quality of the course, teachers can adopt "rain classroom" platform to grasp the students' preview situation in detail and preparing lessons well before class; add interactive links and highlight students' subjectivity in the process of teaching; use "rain classroom" platform to issue key points of review, urge and assist students to do a good job of course review and consolidation after class.