To clarify the control effect of Xylocoris flavipes on pests in simulated warehouses and on storage pests in high temperature and high humidity areas, the X. flavipes are put into the simulated warehouse with the temperature of 28±1 ℃ and humidity 50±10%, in a certain amount. The results showed that after 3 months the effects of controlling the four kinds of storage pests were more than 70%. The benefit-to-harm ratio has no significant influence on the storage of pests. The control effect of X. flavipes on four pests was Oryzaephilus surinamensis>Liposcelis bostrychophilus>Cryptolestes ferrugineus>Tribolium castaneum. In the district with high temperature and high humidity, the effects of controlling storage pests by X. flavipes are significant, which can effectively control pest outbreaks. Biological control of storage pests has the advantages of low cost and non-pollution, and can provide a new effective method to control storage pest.