Lin, Z.Y. Byrd, J.M. Doolittle, L.R. Du, Y.-C. Huang, G. Huang, W.-H. Qiang, Q. Tang, C.-X. Wilcox, R.B. Xu, Y.L. Yang, J. JACoW Geneva, Switzerland 978-3-95450-182-3 10.18429/JACoW-IPAC2017-THPVA055 English 4565-4568 THPVA055 Contribution to a conference proceedings 2017 2017-05 http://dx.doi.org/10.18429/JACoW-IPAC2017-THPVA055 http://jacow.org/ipac2017/papers/thpva055.pdf A precise timing and synchronization system is developed in Tsinghua University(THU). The whole system scheme includes fiber-based CW carrier phase reference distribution system (PRDS) for delivering stabilized RF phase reference to multiple receiver clients, Low Level RF (LLRF) control system to stabilized the accelerating mi-crowave field and laser-RF synchronization system for high precise synchronization of optical and RF signals. The system test and the demonstration experiment of each subsystem are carried on to evaluate the system and the phase error jitter resources are analysed.