Aiming at the requirement of the synchronous trigger signals of large-scale laser device with wide spatial distribution and high-precision (one is that the long-term timing jitter is less than 5 ps, and the other is that the time delay resolution is less than 15 ps), a synchronous timing generation scheme of “data stream codec optical transmission,coarse delay by using transceiver, and fine delay by using broadband microstrip delay line” is designed. The optical transmission architecture of the data stream codec realizes the timing alignment over a wide spatial range, and the technology of the transceiver and microstrip delay line solves the problems of low time jitter and high delay resolution. The design and development of the whole system were completed by simulating the timing logic of the system and the key circuits board, and experimental test were carried out. The test results show that the system can realize the generation of synchronous timing signals in a wide spatial range, and the time jitter accuracy is better than 3.76 ps (rms, 8 h ), 39.6ps (peak-to-peak, 8 h), and the time delay resolution is better than 8 ps; If the system is applied to a small spatial range, the time accuracy of the synchronous signal can be better than 1.27 ps (rms, 8 h ), 12.4 ps (peak-to-peak, 8 h).