The study has identified 54 species of Osteichthyes fish in the aquaculture sector of Thai Nguyen city. They belong to 6 orders, 16 families and 54 genuses. In particular, the carp order has 7 species, accounted for 43.75 percent. Family of Carp Cyprinidae has 31 genuses, accounted for 62 percent. Genus of Clarias has 3 species accounted for 6 percent. There are 7 species of rare fish in Vietnam's Red Book 2004. Current status of fish populations in waters is very limited. Proposed 10 solutions for sustainable development of species fish, in the development of sustainable environment, social, economic, and political.