For the problem that multi-media classroom management is faced with nowadays, an automatic management system for multi-media classroom which is low cost and easy to popularize is designed. .NET Framework and SQL Server is used as the platform. The software of the system is developed by C#, used database technology and remote control technology. The hardware is based on Single chip microcomputer technology, and uses serial ports to control the devices in classroom automatically. Administrators’ work efficiency is greatly improved and investment cost of equipment in school is saved since the system has been put in use. It is worth popularizing and improving.