Abstract: The machines and equipmenst lubrication problem is the most important issue in the process of using. Aming at the defects of the traditional centralized lubrication system, such as: System bloated, With experience in oil supply, temperature monitoring devices independent, a intelligent centralized lubrication system was designed by designing the hardwares, software,oil cycle and execution configuration operation of industrial PC with PLC communication. The lubrication system uses distributed architecture, forming by host controller PLC, Under executive microcontroller and oil supply system. Upper and lower computer communicat using RS-485 bus.The main fuel supply system includes oil feeder, injection devices and pump station. The PLC displays the temperature and time of lubrication in real-time; the PC feedbacks the datas of the temperature and oil controlling. The lubrication system finally actualized intelligent oiling, host configuration, programming controlling and alarm functions. It can replace the inefficient manual labor refueling operations, while improving efficiency in the use of mechanical equipment, and can make social benefit.