Abstract: A fastening structure for memory card includes two corresponding upper and lower housings. The upper and lower housing have joined inner stopping walls and outer covering walls, respectively. The fastening structure is applied for assembling and securing the upper and lower housings; and has fastening slots provided at the outer covering walls in a penetrated manner, and fastening tenons formed at outer sides of the inner stopping walls and at positions corresponding to those of the fastening slots. Through the joining method using the fastening slots and the fastening tenons according to the invention, the upper and lower housings are assembled and secured.