The utility model relates to a ground clearance variable tunnel mist spraying angle self-adaptation type mist spraying machine, and belongs to the technical field of mist spraying machinery. The ground clearance variable tunnel mist spraying angle self-adaptation type mist spraying machine comprises a steering mechanism, a ground clearance variable machine frame, a differential driving mechanism, a speed changing box, an engine, vehicle wheels, a pesticide pump, a pesticide box, a pesticide pipe, a mist spraying head, a tunnel mist spraying plate and the like. The steering mechanism, the ground clearance variable machine frame, the differential driving mechanism, the speed changing box, the engine, the vehicle wheels, the pesticide pump, the pesticide box, the pesticide pipe, the mist spraying head, the tunnel mist spraying plate and the like are installed on the machine frame, a mist spraying rotary joint, a spraying head rotary motor, a rotary table motor, a rotary table, a mist spraying stretching joint, a stretchable control motor, a camera and an intelligent control system are further arranged on the machine frame, a mist spraying head is installed on the rotary table through the mist spraying rotary joint, the spraying head rotary motor, the mist spraying stretching joint, the stretchable control motor and the rotary table motor, the camera is installed on the lateral face of the mist spraying head, and the intelligent control system is connected with the spraying head rotary motor, the rotary table motor and the stretchable control motor. Melon and fruit angle and position information is achieved through the camera and the intelligent control system, the information is processed to be provided for the motors to control all parts to move, the adjustment on the mist spraying angles and the mist spraying distances of the mist spraying machine is achieved, the mist spraying effect is improved, and pesticide waste is reduced.