Disclosed is a grass protection mat comprising a body where grass passing spaces are continuously arranged and an outer frame comprising four frames formed in four directions to finish an outer edge of the body, wherein the grass protection mat further comprises at least one hook fastener which horizontally protrudes from a first lateral frame of the outer frame toward a second lateral frame of an outer frame of a neighboring grass protection mat, and wherein the at least one hook fastener is fastened to at least one fastening hole provided in the outer frame of the second grass protection mat adjacent to the first lateral frame and corresponding to the hook fastener of the grass protection mat.
