Special-shaped water permeable brick pavement slab forming mold

The utility model provides a special-shaped water permeable brick pavement slab forming mold which comprises an assembly type frame, a top plate, a bottom plate and an auxiliary forming core, the top plate and the bottom plate are installed in the assembly type frame in a guiding mode in the vertical direction, and a shallow grain structure is arranged on the lower surface of the top plate; a groove structure is arranged on the upper surface of the bottom plate; the groove structures and the shallow grain structures are used for forming grains on the upper surface and the lower surface of the pavement slab; the auxiliary forming core is installed in the assembly type frame and used for forming the peripheral surface part structure of the pavement slab. A semicircular space is defined by the front end panel, the rear end panel, the auxiliary forming core and the side plates, under the pressing action between the top plate and the bottom plate, the formed pavement slab is in a semicircular column shape, and the