Semiconductor hair removal deactivates the hair follicles through the accumulation of low energy, and automatically removes hair, so as to achieve the purpose of permanent hair removal without over-stimulating the skin, avoiding pain or risk. Our semiconductor power supply is a constant current pulse output power supply. The output voltage is self-adaptive and matched with the laser load (diode characteristics). It is combined with a semiconductor laser handle to form a semiconductor laser system, which can achieve painless and permanent hair removal and other beauty effects.