A grass protection mat, used for protecting grass on golf courses, grass playing fields, park lawns, etc., or for promoting growth of grass, is provided. The grass protection mat is fixed to a ground surface through a mat anchoring member, and includes a body provided with a grass passage, a projecting column provided at a top of the body, a lug provided at a bottom of the body, and a mat ground anchoring means connected to the body, and configured with a portion to which the mat anchoring member is fixed upon mat installation and disposed at least below the body. The grass protection mat, due to its ground anchoring portions being disposed in closest possible proximity to the ground surface to improve anchoring to the ground when the ground anchoring portions are pressed during on-site installation, can offer superior results including effective prevention of being lifted, deformed, and disconnected.