This paper introduces a design and implementation method of real-time ethernet communication module based on FPGA.The system uses Zynq-7000 series FPGA chip as the control core.Firstly,the data processing module and time synchronization module are developed at PS end.The MAC control processing module is designed to realize the control function of data link layer and the time stamp adding function of data frame or time synchronization frame at the PL end,and then control the external physical interface chip 88E1512 to realize the real-time transmission of data.The test results show that the real-time ethernet communication module designed in the paper meets the needs of practical application.