A support structure for supporting a computer device includes a clamping frame, two clamping members, and a support rod. The clamping frame is used for clamping a side of the computer device. The two clamping members are disposed on the clamping frame. At least one of the two clamping members has at least one angle positioning bump. The support rod is disposed at a side of the clamping frame for supporting the clamping frame. The support rod includes an arm portion and a shaft portion. The arm portion has an angle positioning hole for engaging with the angle positioning bump to fix an angle of the arm portion relative to the clamping frame. The shaft portion is extendedly connected to an end of the arm portion and detachably disposed between the clamping members, for making the arm portion capable of rotating relative to the clamping frame.