Abstract: It was finded regulartions of occurrence and method of control on in JiDong by investigating Liyiomyza huidobrensis in different partition. It showed that Liriomyza Huidobrensis occured 10-13 in greenhouse and 5-6 generations in bare land every year, time of each generation change with temperature and humidity, the optimum temperature and humidity was 25℃ and 70%, the optimum medicament is mixtures of Abamectin.dichlorvos,Cyromazine and Nissorm in 1:29:5, it can control Liyiomyza huidobrensis in egg which the efficacy and decrease rate were 95.83% and 96.43% , it is significantly different from Cyromazine.