Abstract: In order to prevent and control Lithocolletis ringoniella Mats.,the occurrence dynamics of adults of L. ringoniella were researched by sex pheromone trap during two years in apple crchard of Wenchun Town of Mudanjiang City in Heilongjiang Province.And the effects of 4 pesticides were evaluated, to understand the occurrence regularity of L. ringoniella in apple producing areas in Heilongjiang Cold Region and the effects of insecticides. The results showed that it can produce 3-4 generations during a year.The adult eclosion was affected by temperature and rainfall, and the peak of adult eclosion was different in different years.Adult emergence began in May during two years, the emergence peak of adults of occurred in late June, late July and late August in 2021,and it occurred in late June and early August in 2022. The number of occurrences of 1^st and 2^nd generation was the most, and it had the phenomena of generation overlapped. 30% Avermectin+chlorpyrifos, 6% Abamectin+chlorbenzuron, and 25% Chunyaewei could effectively control L. ringoniella. The control effect was above 85% after 5 days of treatment. The sustainability of 25% Chunyaewei and 6% Abamectin+chlorbenzuron were better effect than 30% Avermectin+chlorpyrifos. The control effect was above 80% after 15 days of treatment.