Abstract: An inclination-adjustable cart includes a loading plate on which an object is loaded and a frame supported and fixed to one side of the loading plate, having a handle on the top side thereof to allow gripping by a hand. Wheels are installed at the front and rear of the lower part of the loading plate to guide the movement thereof. The wheels are divided into a front wheel part and a rear wheel part that may be simultaneously lifted/lowered using a wheel shaft or a support plate coupled to the bottom end of a lifting/lowering means. The top end part of the lifting/lowering means is coupled to the bottom surface of the loading plate. The lifting/lowering means is driven by a control part having a gyro sensor. Objects may thereby be stably or conveniently transported without being separated from the cart loading plate, i.e., a cargo box.