With the increasing of SM3 password hash algorithm used at present stage, the execution speed and practical efficiency increasingly unable to meet the needs of processing large amount of data realtime of users. In order to further meet security needs of the era of big data, and improve the hardware efficiency of the SM3 algorithm, considering the feature of SM3 algorithm for efficient, we use hardware description language Verilog design FPGA hardware and integrated simulation using Xilinx software which test the design. Finally, we use the SM3 module in video data authentication on ARM and FPGA platform. Compared with the pure software which realize the same function, when clock is 100 MHz, throughput is increased more than 2 times, the execution efficiency of SM3 algorithm is greatly improved and the problem of realtime video authentication at the present stage is solved.