There is provided a shock-absorbing device disposed between a fixed member and a movable member to suppress movement of the movable member. The shock-absorbing device includes a case member; a shock-absorbing member; and a spring. The case member has a bottom portion, a supporting portion, a shaft portion, and a circumferential wall. The shock-absorbing member has an inner cylinder into which the shaft portion is inserted, an outer cylinder, and a spring bearing portion. A retaining member is provided between the case member and the shock-absorbing member. An outer circumference of the outer cylinder is disposed in an inner circumference of the circumferential wall to function as a first guide for the shock-absorbing member, and an inner circumference of the inner cylinder is disposed on an outer circumference of the shaft portion to function as a second guide for the shock-absorbing member.