The physics demonstration laboratory is mainly used for physics teaching, scientific research and popular science education. Almost all comprehensive colleges and universities in China attach great importance to the teaching of physical demonstration experiments. As a normal university, our school attaches great importance to the cultivation of students' teaching ability and practical ability, and the demonstration laboratory plays an irreplaceable role in this regard. The laboratory work is divided into three modules: construction, management and use. The perennial manual management problems are constant and the utilization rate is low. This paper analyzes how to carry out the construction and management of the demonstration laboratory, how to develop the second classroom and how to train student interpreters based on the demonstration laboratory, and how to effectively reduce the burden on the management personnel.