A support frame for a variety of display devices includes a base, a frame, a sliding part, and a rotation part. The frame is located on the base and has a receiving portion and at least one friction enhancer located in the receiving portion. The sliding part can slide upwards or downwards is located at the frame. The rotation part, pivoted with the sliding part, rotates between a fixed location and a release location; and furthermore has a leaning portion that extends into the receiving portion of the frame. When the rotation part is located at the fixed location, the leaning portion tightly leans against the friction enhancer so that the display device is positioned at the frame. When the rotation part is located at the release location, there is a distance between the leaning portion and the friction enhancer so that the display device can slide upwards or downwards.