Abstract: 【Objective】The study was to clarify the growth, development and propagation of Amblyseius cucumeris Oudemans with Scirtothrips dorsalis Hood as prey, and the population growth parameters were obtained, which provided references for the control of S. dorsalis by using A. cucumeris. 【Method】The development duration, survival rate, adult longevity and fecundity of A. cucumeris with S. dorsalis as prey were observed indoors by using the traditional biological observation method, the life table of the laboratory population was established, and the life table parameters were analyzed. 【Result】The results showed that the feeding amount of female adult A. cucumeris was the largest, up to 122 individuals, follow by that of nymph and non-feeding of larvae. The development period of A. cucumeris with S. dorsalis as prey was 9.98 d, and the survival rate was 94%. The average longevity of adult female was 24 d, and the average per female oviposition was 28, and a large number of adult deaths occurred after the peak of oviposition. The net reproductive rate (Ro), intrisic rate of natural increase (rm), mean generation time (T), finite rate of increase (λ) and double population time (t) of A. cucumeris were 26.95, 0.15, 22.32 d, 1.16 and 4.70 d, respectively. 【Conclusion】With S. dorsalis as prey, A. cucumeris can complete its generation growth, development and reproduction, and can be used as a predatory enemy of S. dorsalis for its biological control.