To reduce a cost for reforming and maintaining a shock absorbing body for an ice-skating rink.

In a shock absorbing main body 4 having a cushion core member 7 such as urethane-foam covered with a covering member 8 such as rubber cloth, a first reinforcing sheet 5 formed of the rubber cloth having a property of which tearing strength is 45 to 50 kgf, and tensile strength is 500 to 550 kgf/3 cm is provided from a front surface side facing to a course to one part of a bottom surface. A second reinforcing sheet 6 is detachably provided from one part of a lower section of the front surface side to one part of the bottom surface to protect the lower section easy to be damaged.