The invention discloses a pendulum swing, comprising a pointer movement mechanism, a pair of semicircular supports, a bottom frame, a shaft and a swing, wherein the bottom frame is horizontally fixed on the ground; the two semicircular supports are arranged in parallel on the bottom frame; the shaft is horizontal, and two ends thereof are coupled to the center points of the two semicircular supports; the swing is connected with the shaft, and the swing swings to drive the shaft to reciprocate; and the pointer movement mechanism is driven by the shaft to drive a pointer to rotate. The pendulum swing simultaneously has the functions of a swing and a clock.