The invention relates to the technical field of red brick embossing, and discloses an auxiliary device for red brick embossing used in construction, including a main body of the embossing device, a support plate is movably connected to the main body of the embossing device, and the right part of the support plate is fixed A connecting rod is installed, a first extruding plate and a first elastic air bag are arranged above the connecting rod, a second extruding part is arranged on the left part of the supporting plate, and a second elastic air bag is arranged under the second extruding part, so A workbench is arranged below the green press mold, and a cleaning plate is arranged above the workbench. In the initial state, the first elastic airbag shrinks, the second elastic airbag bulges, the first pressing plate moves down, and the first elastic airbag is not squeezed. At this time, the second elastic airbag is squeezed by the second extrusion part. When the moving rod moves to the right to drive the rotating gear to rotate counterclockwise, the counterclockwise rotation of the rotating gear will drive the clearing plate to move left through the tooth column, and the clearing plate moves to the left of the workbench in advance and removes the mud on the workbench.