A cable collector of a power supply apparatus is provided. The power supply apparatus includes a power adaptor, a cable, and a cable collector. One side of the cable is connected with the power adaptor. The cable collector includes a first board, a first power connector, and two first blocking boards. The first board is connected with a first surface of the power adaptor. The first power connector is formed on the first board. The first board is connected with the power adaptor via the first power connector. The two first blocking boards are formed on two sides of the first board.