Abstract:Aiming at the low efficiency, the overmuch consumption of the energy and the inconvenient management in supermarket lightsing system,the article introduces a scheme of intelligent lighting control system,which combines the Ethernet technology with the RS-485 bus technology,detailedly describe the overall structure of this system, hardware components and software design. The test demonstrates that the system has high reliability and good effect in diming and energy saving.It is also flexible to operate,convenient to maintain .The system can distribute illumination according to the lighting needs of supermarket in practice.