The utility model aims to provide a convenient and practicable sample making mold applied to a wall brick strength test, and the sample making mold can be used for forming a uniform paste layer on the surface of a brick. The sample making mold applied to the wall brick strength test comprises a base plate, a mold frame arranged on the base plate, a first pressing device and a second pressing device, wherein a first scale and a second scale are arranged in the vertical direction and the horizontal direction of the base plate, respectively; the mold frame comprises a first L-shaped plate and a second L-shaped plate; the two ends of the first L-shaped plate and the two ends of the second L-shaped plates are integrally connected in an inserted manner through grooves and bumps to form a rectangular frame; the first pressing device and the second pressing device are arranged on the first L-shaped plate and the second L-shaped plate, respectively and vertical to each other in the pressing direction.