A fixing buckle of electronic element includes a sleeve and an inserting rod, wherein, the bottom side at the head of the sleeve with relative large external diameter is extended and provided with a tube. The lower side of the tube is provided with a wining sheet of fork shape. The head of the sleeve and the tube are both internally and respectively provided with a penetrated through hole. The inserting rod is solid. The inner wall of a central hole of the sleeve and a spot above the wing sheet are respectively provided with a convex ring which protrudes inwards. The rod body of the inserted rod is consistent in external diameter, and the middle of the rod body is provided with an annular groove which correspondingly concaves inwards. The inserting rod is wholly inserted in the central hole of the sleeve, and the inserting rod is inlaid and clamped with the convex ring of the sleeve, so that the inserting rod can be firmly clamped and fixed in the sleeve, and two base plates can be firmly connected.