Abstract: 【Objective】 It is of great significance to determine the optimal control period of Carpomya vesuviana Costa for the damage degree of jujube fruit in different development stages. 【Methods】 The boring rate and insect density of C.vesuviana in jujube orchard were observed by bagging samples of different hosts.At the same time, the effects of different stages of fruit development on the growth, development and reproduction of C.vesuviana were measured indoors.Also, the biological response of Ziziphus jujubavar.spinosa and Junzao to fruits in different developmental stages was analyzed and evaluated. 【Results】 The boring rate of Junzao was higher than that of Ziziphus jujubavar.spinosa.The boring rate was the highest in the mature stage of Jujube fruit.The density of insect on jujube was the highest at the mature stage.The number of oviposition marks, larvae number and egg hatching rate of the female on Junzao were all higher than that on the Ziziphus jujubavar.spinosa of C.vesuviana.The growth indexes of pupa were higher than those of jujube fruit in coloring and maturing stage.At different stages of fruit development, the growth indexes of pupa on Junzao were significantly higher than those on Ziziphus jujuba var.spinosa.The pupa stage, egg amount of female, sexual maturity period, mating time and male and female adult life span of Junzao were slightly higher than that of Ziziphus jujubavar.spinosa, but there was no significant difference (P>0.05). 【Conclusion】 The selectivity of C.vesuviana to Junzao was stronger than that of Ziziphus jujubavar.spinosa, and the fruit of Junzao at mature stage was more suitable for the growth and development of C.vesuviana.