The survey of Hymenoptera in the surrounding area of Tataka, Yushan National Park, was conducted from August 1990 to July 1991. The survey results indicated that there were 81 species and 9 families in the study area, which was more than the 56 species and 7 families recorded in previous surveys. Of the species recorded in the survey 48 were newly recorded in this region, and 8 were newly recorded in the park. However, 23 species recorded in previous surveys weren’t found during this survey. In total, 104 species and 9 families were recorded for this study area, and 228 species and 11 families were recorded for the entire park region. Butterflies appeared in the greatest number during May to August, and the least during January to March; species were the greatest in number from July to September, and the least from January to March. There were a total of 462 species and 8 families of moth recorded, among which 8 were new Noctuidaes, and 2 were newly recorded species in Taiwan. There weren’t very many moth species in the study area, and the population size of each species varied significantly. Each species also appeared in different times. However, the total number of species and abundance were greater in summer than in winter.