A 42.24 Mbits/s atmospheric laser communication system was developed based on the demand for the multi-service atmospheric laser communication in practice. It could achieve the communications of the V.35, E1, RS-232/485, Ethernet, and phone. Design consideration, basic principle and system architecture of the multi-service atmospheric laser communication system were demonstrated. The atmospheric laser communication experiment shows that the system can implement the communication with broadband, high speed and low bit-error in the cloudless condition, and availabe distance is 500 m.