Abstract: Disclosed is a grass protection mat for soft ground, comprising: an upper mat comprising a first body in which first grass passing spaces are continuously arranged and a first outer frame formed to finish an outer edge of the first body; and a bottom supporting mat which is arranged under the upper mat, wherein the bottom supporting mat comprises a second body in which second grass passing spaces are continuously arranged, and one or more hook fasteners which protrudes from the second body at a predetermined position corresponding to the first outer frame of the upper mat so that it is hooked to and coupled with a portion of the first outer frame.

Abstract: A grass protection mat that includes a plurality of bodies formed with grass passing spaces and one or more contraction-expansion compensatory connectors connecting a plurality of bodies. The grass protection mat and compensating compensates for contraction or expansion of the mat units.