The Wangchiachii’s schizothoracin (Schizothorax wangchiachii) is mainly distributed in southwest river system of China, which is an important economic fish. The wild resource was gradually decreased in recent years，due to overfishing and the water conservancy project. In order to protect the species, hatchery-produced juvenile release program has been implemented in China, and some basic research had been carried out simultaneously. The paper was mainly focused on the morphological development of embryo and yolk-sac larva of Ya-long river Wangchiachii’s schizothoracin, and then compared to the Jin-sha river Wangchiachii’s schizothoracin, in order to verify the early life stage of Wangchiachii’s schizothoracin which from the different living environment. The mature Ya-long river Wangchiachii’s schizothoracin, reared in Fish Breeding and Releasing Station of Jinping-Guandi Hydropower Plants, were used for artificial propagation in this study. The fertilized eggs were hatched in Yushchenko incubator with water temperature of (14 ± 1) ℃. The morphological development of embryo and yolk-sac larva was described and photographed with stereoscopic anatomical lens, randomly select the embryo and larva 30 and 10 every time, respectively.The biology data of larvae was measured with vernier caliper. Photoshop CS4 was used for phtogragh processing and the Excell software for data processing. The results showed that the Ya-long river Wangchiachii’s schizothoracin larvae hatched 181 h after fertilization, and the accumulative temperature was 2 539.98 h·℃. The time table of Wangchiachii’s schizothoracin embryo development can be acquired from Tab.1 and the embryo morphological development of Wangchiachii’s schizothoracin was showed in Fig.1. The average total length (TL) of newly hatched larvae was 11.36 ± 0.22 mm, and TL was 15.64 ± 0.59 mm,when the yolk-sac was absorbed thoroughly, the larvae growth data and morphological development was showed in Tab.2 and Fig.2, respectively. The conclusion was that the early life stage of Ya-long river Wangchiachii’s schizothoracin was basically same with Jin-sha river Wangchiachii’s schizothoracin, but some characteristic were differences such as egg diameter, hatch time and so on, maybe due to living environment difference.