A stand includes a base, a rotating element and a cover. The base includes a main body and a position device combined moveably with the main body. The rotating element combines rotatably with the position device to form a pivoting portion and is moved with the position device. The rotating element includes a guiding pillar. The cover combines with the main body, and the cover includes at least one guiding structure. The guiding pillar can be moved along the at least one guiding structure when the position device is moved, and a rotation operation of the guiding pillar can be limited by the at least one guiding structure when the guiding pillar is rotated with the rotating element.