A racket shock-absorbing device comprises: a lower hard seat member, disposed at a periphery of a racket frame of a racket and arranged between two single grommets respectively formed with a string hole allowing a string to be disposed, and a top end thereof is disposed with one or more than two protrusions, and the lower hard seat member is formed with a recess; at least one upper soft pad member, disposed on a top end of the lower hard seat member, wherein one or more than two buckle slots is disposed inside the upper soft pad member and arranged correspondingly to the one or more than two protrusions of the lower hard seat member, the string is crossly disposed and downwardly pressed at a top end defined at a center of the upper soft pad member and arranged correspondingly to the recess of the lower hard seat member.