In order to speed up the scabbing speed of sports micro-injury and promote the recovery and self-healing effect of sports micro-injury, a low-power laser repair system for the next sports micro-injury with hormone intervention was proposed. By analyzing the role of low-power laser in sports medicine, CMOS camera, sensor and light source are used as the hardware of the repair system, and the image output signal is obtained by driving pulse interference transmission. Different lighting methods are used to filter the image information, and the system software is composed of user interface, damage detection module, laser module, main control module, vision module and configuration module. Relying on this system, the excessive production of collagen fibers, active oxygen production, lipid peroxidation damage and muscle regeneration are inhibited.Experimental results show that the low-power laser repair system under the interference of hormone can effectively repair different degrees of sports micro-injuries, and make the scarring speed of damaged areas faster.