An exemplary hinge positioning structure (20) includes a pair of first leaves (22), a pivot shaft (262) rotatably engaged in the pair of first leaves, and a pair of pivot shaft grippers (24) sleeved on the pivot shaft. An end of each pivot shaft gripper engaged with each of the first leaves respectively so that the end of each pivot shaft gripper is fixed relative to each of the first leaves. The hinge positioning structure further includes a resilient member (266), two ends of the resilient member connected to the pair of pivot shaft grippers respectively, and applying a force on the pair of pivot shaft grippers so that the pair of pivot shaft grippers tightly grip the pivot shaft, such that the pivot shaft is prevented from rotating relative to the first leaves.