An electronic device includes a main body, a hinge, a display, and a protective structure. A recessed portion is defined in an edge area of the main body. The hinge includes a shaft passing through the recessed portion with a part of an outer surface exposed in the recessed portion. The display is connected to the main body with the hinge and is capable of rotating relative to the main body with the shaft. The protective structure is detachably mounted to the main body and partly received in the recessed portion for engaging with the main body to completely receive the outer surface of the shaft.