To a quick connector capable of sufficiently reducing a permeating amount of gasolin fuel and helping smooth inserting and connecting works of a pipe body and having a superior wear risistant property.

A pipe inserting portion 11 of a connector housing 3 is integrally provided with a retainer retaining portion 19, a seal retaining portion 21, and a connecting portion 23. Two circular seal members composed of a X-ring 25 as a first circular seal member and a circular cross-sectioned O-ring 27 as a second circular seal member are fitted at one side of the inner peripheral surface of the seal retaining portion 21 to an axial direction at axial intervals. The X-ring is made of FKM, and the O-ring is made of FVMQ.