Abstract: Xiaozhaizigou Nature Reserve in beichuan County there were found one genus of Aceraceae family plants including 13 species, subspecies 1 and 2 varieties. They accounted for 11% of the total Aceraceae plant species in China,and 36% of Aceraceae plant species in Sichuan. Among them,13 species were endemic to China,3 species were endemic to Sichuan. On the basis of Aceraceae plant resource survey and analysis,a description was given of its exploitation value and it was suggested to strengthen the protection of wild resources, and the introduction of domesticated and selective seed research, aiming to realize development of Aceraceae plants resources.