An opening and closing structure arranged on a casing of an electronic device includes a cover plate and at least one connecting assembly. The cover plate is arranged inside a groove defined in an outer surface of the casing. The connecting assembly includes a connecting rod. A first end of the connecting rod is coupled to the cover plate. A second end of the connecting rod passes through the groove. The connecting rod is slidable within the casing to allow the cover plate to open and close relative to the casing.