The utility model relates to an optical phase conductor terminal connector box, which is an optical cable connector box applied to 220KV optical phase conductors (OPPC). The connector box comprises anupper box body and a lower box body, wherein a composite hollow insulator is arranged between the upper box body and the lower box body and an equalizing ring is arranged between the upper box body and the composite hollow insulator; the upper box body is provided with an optical phase conductor holder, and a guiding pipe, a rubber ring I and a screw nut are arranged at a cable inlet; the cable inlet is internally provided with a rubber awl I and a small pressure ring I; the bottom of the upper box body is provided with a large pressure ring, a small pressure ring II and a rubber awl II; thelarge pressure ring is provided with a support screw I, a fiber plate I and a fiber plate cover I; the upper part of the upper box body is provided with a seal gasket and an upper cover; a fiber unitpenetrates the interior of the composite hollow insulator and the interior of the composite hollow insulator is filled with silicon gel; a sealing device with a fiber unit is arranged at the lower boxbody and a cable leading clamp, a rubber ring II and a nut II are arranged at the cable leading place of the lower box body; and the lower box body is internally provided with an optical fiber storage device.