The life history and main development characteristics of different development stages of Craspedacusta xinyangensis were recorded. Under the condition of 25-28℃ ,the eggs would develop into 0. 14-0. 21 mm long,stick shape planula 23 h after fecundation. Under the experimental condition,The planula would float in the water for 3-5 days and then stayed on the bottom of the glass container. In the following 3-4 days,they would develop into a 0. 3-0. 6 long hydranth. The hydranth would reproduce unciliated frustule which would reproduce new hydranth. After the hydranth reached the maturation, only one medusa bud would be reproduced. The newly released young medusa had 16 tantacle.