A rear holder integral-type connector is constituted by a hollow rectangular housing body made from resin, and rear holders coupled integrally with the upper and lower walls of the housing body through displaceable hinges respectively. The rear holders are bent, at a position displaced from the fore side of the upper wall of the housing body to the rear side slightly, toward the fore side with the displaceable hinges as pivotal axes. The housing body and the rear holders which are disposed back to back, are temporarily fixed by temporary fixation hinges. These temporary fixation hinges are formed integrally with the housing body and the rear holders. Locking side pieces for locking are provided at the both side ends of the rear holders, and locking grooves are provided at a rear end portion of the housing body.