The invention discloses a quick connector, comprising a connector body, a plug connector, and a connector head. The left end of the connector body is provided with a sliding hole, and the right end is provided with a mounting hole. A screw plug is fixedly installed at the opening of the right end of the mounting hole. The left end of the screw plug is provided with a first protruding shaft, and the right end is provided with a connecting hole, and the connecting head is installed in the connecting hole; the right end of the plug joint is provided with a bump, and the outer circumference of the bump is provided with a ring lock slot, the right end of the protruding block is provided with an insertion slot; the first protruding shaft is provided with a valve hole, the left end of the first protruding shaft is provided with a second protruding shaft, the first protruding shaft and the second protruding shaft There is a valve port in the two protruding shafts; a top sleeve is slidably connected in the sliding hole, a shoulder is provided at the right end of the top sleeve, and a first spring is provided in the mounting hole; a rotating shaft is provided at the left end of the first protruding shaft, Each rotating shaft is provided with a locking block and a torsion spring; a valve core assembly is provided in the valve hole, and a positioning assembly is provided in the first protruding shaft; the quick joint is not only simple in structure, but also reliable in connection.