A method of digitalizing the time sequence of timer is a new timer design of radar. The paper describes the characteristics of the time sequence of the timer and a method of digitalizing the time sequences of timer that have marked the time value. In combination with the hardware design model of MPU+FPGA, the more stable and standardized radar timer is performed. The application of the method to radar timer design can shorten the design period, improve the quality and share in radar timer design.