A voltage change-over switch structure and a motor using same. The voltage change-over switch structure comprises a change-over plug (1) and a junction box (2). The junction box (2) is provided with a plurality of jacks (21). Connecting terminals (211) are mounted inside the jacks (21). The bottom surface of the change-over plug (1) is provided with a plurality of plug-in terminals (11). The top surface of the change-over plug (1) is provided with a protrusion (12). Both ends of the connecting terminals (211) are respectively connected with the coil winding of a motor and the plug-in terminals (11) of the change-over plug (1). One side of the junction box (2) can be directly installed on the casing of the motor by means of a retaining clip connected by a connecting rib (22). The structure is convenient in installation, and the offset of the voltage change-over switch is prevented. The voltage change-over switch structure is stable and firm in installation. The connecting rib (22) is provided with a reinforcing rib (221). Therefore, the entire structure is firmer.