Abstract: Artificial propagation of Leptobotia elongata collected from the Panzhihua section of Jinsha river and Luzhou section of Yangtze river were studied from June to July in 2017. At the same time the embryonic development of Leptobotia elongata from Panzhihua section of Jinsha River were observed. In the experiment of artificial inducing spawning of 4 parents 18 000 fries were received,the study indicated that the females matured earlier than the males,The time they both reach sexual maturity may be in the end of June. Gastrula began in 5.0 h at 24 ℃,and the average hatching time was 31.0 h,the average length of the larvae was 5.2 mm. Before hatching the length of larvae and the diameter of egg membrane was about equal. the fish was able to stretch and swim freely in the egg membrane. This was different from other Cobitidae and most of Cyprinidae.

Key words: Leptobotia elongata, Yangtze river, Jinsha river, artificial propagation, embryonic development