In the optical connector plug, a length from the end face of the capillary of the ferrule to the front end surface of the flange in the axial direction is larger than a length from the front end of the forward portion of the first accommodation space of the plug frame to the rear end surface of the rearward portion of the plug frame in the axial direction, and in a state in which the front end surface of the flange is in contact with the rear end surface of the plug frame, the end face of the capillary is located in the second accommodation space.