According to the task requirements of timing, communication and multi-function control of a certain type of searchradar, a multi-function timing control module based on CPCI bus architecture is constructed with FPGA as the main control device.The hardware design includes power module, clock management, FPGA, PCIe control, RS-422 serial port and other functionalmodules. The software uses Verilog language programming to realize the radar timing control, PCIe interface and synchronous serialport data transmission, radar parameter initialization, display and control command distribution, sub-system status reporting, shelterAngle setting, GPS timing calibration and so on Kind of function. The module was tested and verified with the radar prototype in atest site in Yantai, and the function and reliability of the timing control module were fully verified through the integrated adjustmentand the whole machine test. The practical engineering application shows that the function and performance of each module of theuniversal timing interface can meet the design requirements of the system.