This paper presents an automatic computer table based on STC89C52 MCU,the height and angle of the desk can be adjusted by MCU.The computer desk can also be connected with the Bluetooth of the mobile phone through the MCU to realize the wireless remote control and adjust the height and the angle of the display screen of the computer desk.According to man-machine engineering,the design can meet the needs of different adult populations for computer display height and angle requirements.The design of the computer desk can meet the daily needs of people in the office,and can effectively reduce the pain of cervical spondylosis,lumbar pain and other symptoms,which are caused by long working hours.The computer desk can improve work efficiency,strong practicability,high performance price ratio. This paper presents an automatic computer table based on STC89C52 MCU, the height and angle of the desk can be adjusted by MCU.The computer desk can also be connected with the Bluetooth of the mobile phone through the MCU to realize the wireless remote control and adjust the height and the angle of the display screen of the computer desk. According to man-machine engineering, the design can meet the needs of different adult populations for computer display height and angle requirements. the design of the computer desk can meet the daily needs of people in the office, and able effectively reduce the pain of cervical spondylosis, lumbar pain and other symptoms, which are caused by long working hours, strong practicability, high performance price ratio.