We have carried out an experiment of the high yield and long effective cultivation technique of applying Yidaoqing to a new red-peel onion variety "Changji-99-3" bred through laser-radiation. Compared with its conventional control, our technique can increase the fertilizer's application rate by 25%, meet the needs of the whole growth of the variety, decrease its early spouting rate by about 13%, raise its production by 10%, reduce labor force by 75% and improve its quality. This rechnique shows us a wonderful applying prospect in future production.