Abstract: A ceiling fan includes a rotatable motor seat, and multiple blade racks. The motor seat is provided with multiple retaining studs and multiple locking screws. Each of the multiple blade racks includes an arcuate mounting plate secured on the motor seat. The mounting plate of each of the multiple blade racks has a first end provided with a retaining hook rested on a respective one of the multiple retaining studs, and has a second end provided with a locking hook locked on a respective one of the multiple locking screws. Thus, the blade racks may be assembled and disassembled easily, conveniently and rapidly.