A litter box lifting system includes a litter box. A cart is provided that has a base and a platform and the litter box is positioned on the platform. The platform is positionable in a raised position with respect to the base such that the litter box is elevated. Thus, the litter box is accessible to a user without having the user bend over. The platform is positionable in a lowered position with respect to the base such that the litter box is lowered. Thus, the litter box is accessible to an animal. A lifting unit is coupled to the cart and the lifting unit selectively urges the platform between the raised position and the lowered position. A plurality of wheels is provided. Each of the wheels is rotatably coupled to the base such that each of the wheels may roll along a support surface. A handle is attached to the base such the handle may be manipulated thereby facilitating the cart to be rolled along the support surface.