A foldable and adjustable supporting apparatus is provided, including a base, an adjusting element, a receiving element and a positioning unit. The apparatus provides support to an object, such as, portable electronic device, to stand in various tilt angles. The receiving element is coupled to the base, and can rotate more than 270°. The adjusting element and positioning element located on the base are responsible for maintaining the tilt angle of the rotated receiving element. The apparatus, when not in use, can be folded into a box-like appearance. When in use, the apparatus can be expanded to provide support to portable electronic device to remain in standing position.