This paper introduce the base knowledge of wireless communication repeater and the characters of TD-SCDMA mobile communication system. Discussed the effecters of repeater for TD-SCDMA network .Got the td repeater's standard by analyzed the repeater's mostly application for TD-SCDMA in building signal distribution. Compared the different methods of TD repeater synchronization solution, use the GPS synchronization solution make TD-SCDMA wireless repeater into actuality . Optimized the RF chain by software simulation tool, at RF power amplifier match net work and DC power switch control. Provide the test sample for Ministry of Information Industry. Add a new rise point for our company.