The invention discloses a quick connector of a pull-out faucet and a quick-connection pull-out faucet structure. The quick connector of the pull-out faucet comprises a male connector and a female connector used for sealing the plug-in water inlet pipe, and further comprises a check valve located in the female connector and communicated with the male connector water channel, an elastic positioningclip is arranged on the outer wall of the male connector, a clamping protrusion is arranged on the elastic positioning clip in a protruding mode, the female connector is provided with a positioning clamping hole matched with the clamping protrusion, the check valve is of a cylindrical structure, the outer wall of the check valve is in sealed contact with the inner wall of the female connector, thetwo ends of the check valve are correspondingly provided with a water inlet hole and a water outlet hole, a plugging core used for blocking the water inlet hole and can be elastically reset is arranged in the check valve. The novel quick connector of the pull-out faucet has an innovative clamp spring design, the insertion connection is easy to clamp, the positioning is not backward, the connection can be removed by pressing the clamping protrusion, quick connector of the pull-out faucet is small in size, capable of passing through fine space such as a faucet nut and the like, and is very convenient to operate, and water can be prevented from flowing back, dropping water and leakage water.