With the rapid development of the Internet, sensor and multimedia technology, many schools build modern multimedia classrooms, using the advanced network topology to integrate the audio, microphone, projector, server and display together. The operation of multimedia classroom has the defects of incompatibility, low efficiency, abnormal sound-output, etc. The traditional passive maintenance mode affects the normal use of multi-media classroom. It is urgent to construct innovation mode by using sensors, video monitoring and data mining in the multi-media classroom to carry out the active maintenance. The innovation mode can improve the effectiveness of multimedia classroom construction and maintenance.