Wall surface moisture-proof device

The utility model relates to the technical field of wall decoration, in particular to a wall moisture-proof device which comprises a main body, a roller clamping device is arranged in the main body and comprises a first motor and a sliding way, the inner wall of a box body is fixedly connected with an abutting block, a circular groove is machined in the outer wall of the box body, and the roller clamping device comprises a second motor and a sliding way. Through cooperation of the main body and the roller clamping device, the electric telescopic rod drives the V-shaped frame to move, the V-shaped frame drives the sliding block to move inwards, so that the sliding block abuts against the wallpaper roller, the wallpaper roller is clamped in the mode, the electric telescopic rod works reversely when disassembly is needed, the working efficiency of the moisture-proof device is improved, and the practicability is high. Through cooperation of the main body and the cutting device, the second connecting rod drives th