Sport injury recovery therapeutic instrument

The utility model provides a sport injury recovery therapeutic instrument, which comprises a knee protecting part and a therapeutic part, and is characterized in that: a display screen is arranged on the therapeutic part; the inner side of the therapeutic part is provided with a battery box; the battery box is provided with a DC jack; the top end of the therapeutic part is further provided with a key area; the key area comprises four keys; the therapeutic part is provided with vent holes; four corners of the knee protecting pat are respectively provided with a fastening belt; the knee protecting part comprises infrared lamps and diathermy lamps; the center of each diathermy lamp is respectively provided with an infrared lamp through hole and a diathermy lamp through hole; the periphery of each through hole of the infrared lamps and diathermy lamps is provided with silver sheets; the inner side of the knee protecting part is provided with four electrode plates at positions close to the fastening belts, two ele