LED display screen interface waterproof structure

The invention relates to an LED display screen interface waterproof structure which comprises a box, an LED display module and a waterproof ring. The box is provided with a pin, a first water retaining wall is formed at the portion, around the pin, of the box, and a part of the first water retaining wall extends and protrudes from the front face of the box; the LED display module comprises a bottom shell and a PCB, a second water retaining wall is formed at the portion, at the first water retaining wall, of the bottom shell, a part of the second water retaining wall extends and protrudes from the back face of the bottom shell, a part of the first water retaining wall is inserted into the second water retaining wall, one of the two opposite faces of the first water retaining wall and the second water retaining wall is sunken to form an annular fixing groove, and the waterproof ring is arranged in the annular fixing groove and compressed between the first water retaining wall and the second water retaining wall