The invention relates to a class switching system for teachers and a class switching method thereof. The system comprises a foreground system formed by a mobile phone terminal or computer client terminal and a foreground class switching module is arranged in the foreground system. The foreground system is in communication connection with a background server by a communication network; and a background class switching module and a database for class switching are arranged in the background server; and the background server is also in communication connection with a server for educational administration by a communication network. With the system and the method, defects that the time and effort are consumed, the class switching is not accurate, the manual dispatching is difficult, the real-time performance can not be realized by the step-by-step examination in the prior art can be overcome.