Abstract: The present invention provides connector base structures for a connector, wherein a connector is structured from at least a first connector base and a second connector base. Abutting of protrusions of the first connector base and guide clasps of the second connector base enables achieving effectiveness to correctly guide and completely join terminals thereof, and effectively prevent erroneous connection therebetween. Furthermore, clasping of hook portions and clasp holes facilitates joining the first connector base and the second connector base, thereby achieving the objective of effecting a firm clasp between the first connector base and the second connector base and preventing them from coming apart.