It include a body part in the grass protection mat of integrated assembled type its medium-height grass channel space is continuously arranged with an outer frame part include four formation frames complete in all respects with the body part of outline border the horizontal outer frame part outstanding from the first side of at least one hook fastening device is to the second adjacent side frame it is formed comprising wherein hook fastening method be to be secured to one or more fixation holes be set to 1/10th seconds straw mat of outer frame part adjacent to the first frame it is corresponding in, with hook fastening device grass protection mat. According to the present invention, being easy to connect or separate shield straw mattress uses hook fastening device as multiple shield straw mattresses are arranged on interconnecting piece, therefore the pad easy for construction that can be improved connects or separates.Copyright KIPO 2017