Wall-mounted device of display device and display device

Disclosed are a wall-mounted device of a display device and the display device. The wall-mounted device of the display device comprises a wall fixing part (1) to be fixedly connected to a wall and a display device body fixing part (2) to be fixedly connected to a display device body (3). The wall fixing part (1) has a pin hole (11). The display device body fixing part (2) is hooked onto the wall fixing part (1), and the display device body fixing part (2) is provided with a spring pin (21). The spring pin (21) is disassembled from the pin hole (11) when in a compressed state, and the spring pin (21) is assembled in the pin hole (11) when in a reset state. After the display device is mounted on the wall, relative motions between the display device body (3) and the display device body fixing part (2), as well as the wall fixing part (1), will not easily occur, and therefore, the risk of same falling off of the wall fixing part is reduced, the safety and reliability of the wall mounting of the display device is increased, and the mounting procedure is simple and convenient.