Wall crack width measuring device for building monitoring

The utility model discloses a wall crack width measuring device for building monitoring, which belongs to the field of building detection appliances and comprises a bottom plate, an operation table structure is mounted on the upper wall surface of the bottom plate, a key structure is mounted on the right wall surface of the operation table structure, and a camera probe structure is mounted on the upper wall surface of the operation table structure. A pointer structure is mounted on the left wall surface of the camera probe structure, and a height adjusting structure is mounted on the right wall surface of the camera probe structure; the operation table structure comprises a telescopic rod, an operation table, a baffle, a storage power source and a touch display screen. The telescopic rod is installed on the upper wall face of the bottom plate, the operation table is installed on the upper wall face of the telescopic rod, the baffle is installed on the lower wall face of the operation table, the storage power