This paper introduces the principle and design of a kind of energy saving and sound and light control electronic switch. It is realized by the integrated chip TC4011 and the transistor. In the receiver, the signal is received by the receiver and the light signal is felt by the photosensitive resistance. After the delay circuit, the output of the TC4011 is controlled by the conduction and disconnection of the transistor, thus controlling the light and the light of the LED lamp. Acousto optic double control lamp is acousto-optic delay line is added inside the lamp can be widely used in building corridor, the eldest branch, courtyard and so on aisle of a series of public places and acoustooptic controlled lamps instead of incandescent lamp to bring the inconvenience and save unnecessary expenses and energy consumption. This is the modern ideal of new green lighting switch, the advantages of energy saving, to avoid human or physical loss, saving maintenance costs, and so on, and extended the switching life.在本设计中介绍了声光控路灯控制器的适用范围及工作原理。当白天光照良好的情况下,不管发出多大声音,LED灯不亮,在夜晚光线比较暗的情况下,驻极体话筒只要检测到有声响发出,就会自动点亮LED,然后延时熄灭。In this design introduces the application and working principle of sound and light control of street lamp controller. When daylight illumination is good, no matter how sound issued, LED lamp does not light, night light in the dark, the electret microphone as long as the noise burst is detected, will automatically light up the LED and delay quenching.