Abstract: Because of its multiple functions, wetlands have become the focus of research in recent years. The social function of wetland in national wetland park is the most direct manifestation of wetland function. The analytic hierarchy process is adopted by taking wetland protection and utilization, culture and science and education, landscape and leisure as the comprehensive evaluation layers. The social function evaluation system of national wetland park is established by combining 13 indicators. Through weight calculation, the weight of wetland protection and utilization is the most important layer, followed by culture and science education, and the weight of landscape and leisure is the least important. The comprehensive evaluation indexes of all national wetland parks in Heilongjiang province can be obtained by further calculation. The results showed that: The Sun Island National Wetland Park was the best, CEI=0.806; The Baiyu Bubble National Wetland Park and Xinqing National Wetland Park was the second. Anbound river national wetland park performed poorly in social functions; The functional performance of Fujin National Wetland Park and Taihu National Wetland Park was poor, with CEI being 0.522 and 0.499, respectively. The study can provide scientific basis for the restoration, protection, development and management of wetland resources in Heilongjiang national wetland parks.