A power generating chair includes a base, a seat, a back, and a power-collecting module. The seat includes a seat housing and a first cushion received in the seat housing. The seat is positioned above the base. The seat housing is supported by the base. The first cushion is made of piezoelectric material and configured for converting mechanical energy to electrical power. The back is connected to a side of the seat. The power-collecting module is electrically connected to the first cushion and configured for storing the electrical power generated by the first cushion.