Abstract: A real-time information synthetic method based on hardware system is given out, and a real-time information synthetic processor based on FPGA is designed in this paper. The processor can compose synchronization information when camera outputs image. The processor can receive 16 RS-422 serial data and 8 RS-232 serial data at most, and automatically adapt the input image's resolution and frame rate. The experiment data verifies the correctness of the processor. The processor is good at real-time, stability,and integration.