Mortar paving thickness control device for wall masonry

The utility model discloses a mortar paving thickness control device for wall masonry, and solves the problem that false joints and missed joints are easy to occur in wall masonry in the prior art. A rectangular frame is composed of a front side aluminum alloy square tube (1), a rear side aluminum alloy square tube (2), a left front sleeve (3), a left rear sleeve (5), a right front sleeve (4) and a right rear sleeve (6), the left front sleeve (3) and the left rear sleeve (5) are connected together in an inserted mode, the right front sleeve (4) and the right rear sleeve (6) are connected together in an inserted mode, four supporting legs with the height of 10 mm are arranged on the lower bottom face of the frame, and the rectangular frame is arranged on a lower layer building block (13) through the four supporting legs. Mortar is filled in the rectangular frame, so that the rectangular frame is flush with the aluminum alloy square tube (1) on the front side to form a mortar paving layer (14) with uniform thic