Considering the features of the archaeological site and the multifunction cultural relics conservation mobile platform, by integrating the serial powers, serial channels audio and video devices, centralized controller units etc., the electric system for the mobile platform has been developed; and by using satellite communication, 3G/4G mobile communication, Beidou communication, local area network technology, the mobile communication system platform has also been developed in this work. Through practical application, the bandwidth of satellite communication is 4 Mbps, and the bandwidth of China Unicom 4G mobile communication exceeds 8 Mbps. The proposed electrical and communication system can satisfy the need of archaeological site.