Abstract: In order to improve level of automation and intelligence of sonic instrument，and reduce labor intensity of managers，a kind of remote control sonic instrument based on Web was designed.During growing period of crops，managers could remotely set up opening or closing time of sonic instrument by Web.It also could automatically adjust audio frequency according to change of air temperature and humidity inside greenhouse.Production test showed that remote control interface was easy to operate and equipment worked stability.Yield per rape plant increased by 17.14% and total output increased by 17.14%.