[in Chinese with English abstract: ] Epiphytic lichens are an important component of epiphytes and show extreme sensitivity to environmental changes in subtropical montane forests. To understand the response of epiphytic lichens to forest edge effects, 16 plots at 5m, 25m, 50m, and 100m from the edge in four edge-interior transects were established in a primary montane moist evergreen broad-leaved forest in the Ailao Mountains of Yunnan. Within each plot, epiphytic macrolichen litterfall was collected over one year and the differences in biomass, species diversity and community structure were compared. It was indicated that there was a positive effect of edge environments on the species diversity and biomass accumulation of epiphytic macrolichen litterfall in the plots within 25m from the edge. Epiphytic lichen groups also showed various responses to edge effects. Ordination analysis showed that there was a significant difference in species composition between the 5m plots and the other plots while indicator species analysis revealed significant indicators only occurred in 5m plots. The positive effect of forest edge on the epiphytic lichens in the Ailao Mountains may be due to the high-light damage largely weakened by the high humidity and the small thalli of dominant foliose and fruticose macrolichen species being potentially less prone to mechanical damage destroyed by wind-force. Key words: macrolichen, epiphyte, litterfall, indicator species, community structure, ordination analysis.