Abstract: A bamboo drum has a hollow cylinder formed of a plurality of ring bodies stacked together. The ring bodies are made of bamboo sheets and provided respectively along the upper ring portion thereof with a protruded circular rib, a circular groove, and an inclined circular surface for enabling the ring bodies to be stacked together to form the hollow cylinder without voids. Each of the ring bodies has two end portions of various forms to provide the two end portions with the contact areas capable of fusing securely the two end portions of the ring body.