A bead weaving tool includes a plate member having a planar bead mounting surface for bead placement. The plate member has a pair of thread holding portions mutually spaced across the bead mounting surface for holding a plurality of threads separately. The plate member also has a pair of thread support walls protruding from the bead mounting surface at positions close to the thread holding portions, respectively. To hook one end and the other end of the respective threads, first and second thread hanging portions are provided.