Low power output cold laser, improve physiological effects, functional stimulation, accelerate cell regeneration, promote metabolism, eliminate cellulite, improve body shape. Laser weight loss instrument provides a safe and non-interventional method to adapt to different skin conditions, promote the microcirculation of skin capillaries, timely supply the required nutrients and oxygen of skin cells, enhance the resistance and self-repair function of skin cells, enhance the elasticity of capillaries, and achieve satisfactory weight loss effect. The laser used in the laser weight loss instrument only acts on the set fat layer, which not only does not hurt the surface skin, but also accelerates the self-repair of the skin elastic fiber, stimulates collagen proliferation, and keeps the skin that has sucked fat tight, smooth, and flat.