An electrical connection apparatus includes a cable connector, a PCB, and a fastened wall. The cable connector includes a connecting terminal and a plurality of first contacts. One part of each first contact is located in the connecting terminal, and the other part extends from the connecting terminal. The printed circuit board includes a substrate and a plurality of second contacts. The plurality of second contacts are located on a surface of the substrate. The fastened wall includes a plurality of sidewalls. The plurality of sidewalls are fastened to the substrate, and are located on at least two opposite sides of the plurality of second contacts. When the cable connector and the PCB are fitted, the cable connector and the fastened wall are detachably fastened, and the first contact and the second contact are in close contact.