Abstract
We discussed the characteristic of water body-forest complex for breeding Rhacophorus arboreus which was a forest-dependent amphibian. It was measured the spatial distribution of all the foam nests deposited above the small pond in the forest. The height of the foam nests was in the range of 106-950 cm, and the average was 434cm (n=148). The number of foam nests of each tree was various. It was guessed that the horizontal cover of a tree canopy and the water surface was more important than the tree species and the tree height. The spawning position rose as the breeding time became. Trees of various heights that hang to surface of the water tree canopy are necessary for surroundings in the breeding water bodies.