Abstract: In order to scientifically formulate fishery resources protection and management measures,the status of fish resources in Xenocypris davidi National Aquatic Resource Reserve of Luokou River was investigated in March,July,October and December of 2018.The results showed that there were 36 species in the reserve,belonging to 4 orders,9 families and 31 genera.Among them,Pseudogastromyzon fasciatus was endemic species in Fujian Province,while Anguilla sp.,Elopichthys bambusa,Squaliobarbus curriculus and other 16 species were the national key protection of commercial fish.Fish faunal characteristics of the reserve were mainly river plain components,omnivorous and drifting eggs.Xenocypris davidi,Culter alburnus,Pseudobagrus fulvidraco,Tilapia sp.,Siniperca kneri and Megalobrama terminalis were the dominant species.Plagiognathops microlepis,Cyprinus carpio and Hypophthalmichthys molitrix were the normal species.The genus and family diversity index (G-F) was 0.13 and Shannon-Wiener index (H')was 2.32.