A shaking inflatable figure has a body, an inflating unit and a vibrating unit. The body has an inflatable air chamber. The inflating unit and the vibrating unit are mounted inside the body. The inflating unit pumps air into the air chamber. The vibrating unit has a driving motor. A weight is connected to a spindle of the driving motor at an eccentric direction to the spindle of the driving motor. The vibrating unit is mounted on a partition diaphragm inside the body. Vibrations arising from the shift of center of gravity of the eccentric weight are transmitted to the body through the partition diaphragm so that the body is also vibrated to increase animated visual effect and entertaining pleasure to viewers.