During perforation and fracturing operation of the horizontal well, the major function of the wireline pressure control equipment is the fracturing truck hydraulically pumping the perforating gun and the bridge plug into the downhole horizontal segment, after perforation don blow off, upward pull the wireline and perforating gun, after complete one section, change gun and shot, under pressure running in a new horizontal segment again, in such a continuous perforation but don blow off cyclic process, dynamic and static to seal the wellhead, control the wellhead pressure, providing pressure buffer zone and transition area to the bridge plug and the perforating gun string. At the same time, it can make sure the wellhead is closed when there are accidental conditions on the wellhead during operation, thereby preventing gas blowout accidents.