In order to realize the light intensity control for a single LED airfield dimmer, it proposes a control solution based on the common airfield dimmer. It analyzes and compares LED light with the normal light, and then describes the software and hardware design of LED airfield dimmer control system in detail and verifies it with experiment. Experimental results show that the design is correct and effective, the design can realize single LED control and improve the efficiency and prolong life span.