Abstract: The course Atomic Physics is a compulsory course for undergraduate physics students in universities, and it is an important foundation for the subsequent study of quantum mechanics and solid state physics. There are many and complicated course contents, but due to the limitation of class hours, teachers often cannot effectively stimulate students' interest in learning in the process of teaching. The current booming development of online teaching resources provides a direction for teaching reform, and the organic combination of online learning and offline teaching can make full use of their different advantages, stimulate students' interest in learning and improve students' classroom participation, help teachers create efficient classrooms and innovate talent training mode. This paper introduces the teaching reform plan of Atomic Physics based on Rain Classroom + BOPPPS teaching model, expecting to provide a new way of thinking for the curriculum development and implementation of Atomic Physics.

Key words: Atomic Physics, Rain classroom, BOPPPS, Teaching reform