Unlike ordinary chairs and pneumatic chairs, barber chairs generally adjust height by hydraulic oil pump. Under normal circumstances, hairdressers can adjust the height of barber chairs arbitrarily by half-stepping on the foot frame, and the back can adjust the barber chair to adjust the back angle by hand-pulling pneumatic valve. Normal hairdressing chairs have lifting and rotating functions. These designs are mainly for the convenience of hairdressers and hairdressers. The hairdressers can speculate and appreciate the hairdressing design of customers from different angles and heights.