Epiphytes have complex spatial distribution patterns at various scales, and the description of their distribution patterns, for example on a tree, is quite difficult. In this study, using a three-dimensional tree-form mapping method, the tree form of a 47-m high emergent tree in the montane forest of northern Thailand was measured and reconstructed, and the distribution of epiphytes on the tree was accurately recorded. The epiphyte community was classified into six types on the basis of their physiognomy, and destructive sampling of epiphytic matter was carried out for each type with 3 to 4 replications. The total epiphyte biomass and canopy humus on the tree were 158.2 and 381.3 kg, respectively. Approximately 96% of the epiphytic matter was concentrated at the crown part above 20 m of the tree. The distribution of epiphyte community types was found to depend on the branch diameter, and their spatial distribution from the outer crown to the inner crown was successfully visualized on the three-dimensional reconstructed image of the tree.