Heavy-load grass planting brick

The utility model discloses a heavy load grass planting brick which comprises a brick body unit, the brick body unit comprises a plurality of square brick bodies, four side faces of each square brick body are all provided with protruding blocks, grass planting holes are formed by the outer side faces of the protruding blocks on the plurality of adjacent square brick bodies, bosses are arranged at the tops of the square brick bodies, and the bosses are arranged on the square brick bodies. A drainage groove is formed by a gap between the bosses on every two adjacent square brick bodies, and the drainage grooves are communicated with the grass planting holes; compared with a grass planting brick in the prior art, the grass planting brick has the advantages that after the grass planting brick is combined, the compression resistance and load bearing capacity are higher, and the overall structure is more stable; rainwater can be guided into the grass planting holes through the drainage grooves in the square brick b