Jellyfish outbreaks have become increasingly, and caused harm to marine ecosystems. Massive aggregations of Aurelia coerulea have occurred in Bohai Sea and Yellow Sea, China since the end of the 20th century. Their blooms have caused serious impact on the structure of fishery resources, and biological and ecological studies were to be undertaken to countermeasure their blooms. Research on jellyfish blooms has concentrated on the ephyrae and adult medusae. More recently, people recognized that it was necessary to examine the benthic stages. In the jellyfish's life cycle, asexual reproduction of polyp is a key stage in determining the number of medusa in the following year; therefore, we focused on the life stage in this study. Environmental factors such as temperature affect the growth and rate of asexual reproduction of jellyfish at the polyp stage. Much less work has been done on the modes of asexual reproduction of polyps, the way of energy distribution, and the reproductive strategy in different environments. The growth, survival and asexual reproduction of moon jellyfish (Aurelia coerulea) polyp were investigated at six temperatures (12, 15, 18, 21, 24, 27 ℃) in the laboratory experiment, which lasted for 56 days. We systematically recorded the survival and growth of polyps, the number of new polyps, and the method of asexual reproduction every week. The results showed that the mortality rate of polyps was 0%, except for the polyps maintained in 27 ℃, in which the mortality rate of polyps exceeded 60% in 14 days, and all polyps were dead in 42 days. Aurelia coerulea has shown a great variety of asexual reproduction modes in the experiment including production of stolons and hence new polyps, direct budding of new polyps, longitudinal fission, and formation and excystment of cysts, and the temperature have affected the asexual reproduction. The polyps produced the new individuals mainly using formation of stolon in higher temperature and budding in lower temperature. Growth of individuals (calyx diameter) significantly increased with temperature decreased. The calyx diameter of polyp increased by 157% in 12 ℃, 168% in 15 ℃,127% in 18 ℃, 67% in 21 ℃, and 40% in 24 ℃. But the number of new polyps significantly increased with temperature increased. However, polyps at the lowest temperature had a higher percentage of larger individuals and slower population growth rate than those at warmer temperatures. These results suggest that the reproductive strategy to maximize production of Aurelia coerulea is to increase the size of polyps colonies by asexual budding when conditions are good (warmer temperatures and abundant food generally during spring and summer). Budding activity slows, but the size of polyps increases, during the colder winter period leading up to strobilation, resulting in the production of a greater number of ephyrae. It is concluded that the polyps of Aurelia coerulea can tolerate wide temperature variations. The colony of polyps can continue to grow and survive through a broad range of conditions spanning many seasons, thus ensuring survival of the population.