The proposed device, Diode Laser Hair Removal device, is a surgical device, which is intended for hair removal, permanent hair reduction on all skin types (Fitzpatrick skin type I-VI). The device includes a control panel that uses a microcontroller and an LCD screen for human-machine interaction, allowing the operator to set device parameters and control the output laser energy. The main control module receives laser energy parameters and work instructions, detects the footswitch state, and monitors temperature, humidity, liquid level, and flow during operation. The constant current board module supplies the semiconductor laser with a constant drive current and includes detection functions for over-current, over-voltage, and over-temperature. The temperature and humidity control system manages the working state of the condenser, cold plate, and cooling fan based on detected parameters. The handpiece module is the execution unit that emits laser light and includes components for temperature and humidity sensing, cooling, and energy output.