A pipe joint to which a flexible pipe is to be connected, comprising: i) a retainer having a shape of a ring, wherein inserting a flexible pipe with a corrugated pipe formed into a corrugated pattern in an axis direction allows connection of the retainer available in the pipe joint to the flexible pipe, the retainer comprising: a plurality of pawls for getting into a valley of the corrugated pattern of the corrugated pipe; a plurality of supports for contacting an inner surface of a pipe joint body housing the retainer in the pipe joint, the supports being continuous with corresponding ones of the pawls as viewed in a direction of a center axis of the ring of the retainer; and a connector connecting the pawls and the supports in a plurality of combinations continuous with each other, wherein the connector is provided to be more deformable than the pawls and the supports, ii) a pipe joint body housing the retainer, iii) a gasket formed into a ring-like shape for receiving the flexible pipe; and iv) a pressure member (105, 110) that presses an end surface of the gasket in a direction of insertion of the flexible pipe, wherein the pressure member, the gasket, and the retainer are arranged in this order in the direction of insertion of the flexible pipe, and a relative distance between the pressure member and the retainer is limited by a fixing member including the pipe joint body. i) a retainer having a shape of a ring, wherein inserting a flexible pipe with a corrugated pipe formed into a corrugated pattern in an axis direction allows connection of the retainer available in the pipe joint to the flexible pipe, the retainer comprising: a plurality of pawls for getting into a valley of the corrugated pattern of the corrugated pipe; a plurality of supports for contacting an inner surface of a pipe joint body housing the retainer in the pipe joint, the supports being continuous with corresponding ones of the pawls as viewed in a direction of a center axis of the ring of the retainer; and a connector connecting the pawls and the supports in a plurality of combinations continuous with each other, wherein the connector is provided to be more deformable than the pawls and the supports, a plurality of pawls for getting into a valley of the corrugated pattern of the corrugated pipe; a plurality of supports for contacting an inner surface of a pipe joint body housing the retainer in the pipe joint, the supports being continuous with corresponding ones of the pawls as viewed in a direction of a center axis of the ring of the retainer; and a connector connecting the pawls and the supports in a plurality of combinations continuous with each other, wherein the connector is provided to be more deformable than the pawls and the supports, ii) a pipe joint body housing the retainer, iii) a gasket formed into a ring-like shape for receiving the flexible pipe; and iv) a pressure member (105, 110) that presses an end surface of the gasket in a direction of insertion of the flexible pipe, wherein the pressure member, the gasket, and the retainer are arranged in this order in the direction of insertion of the flexible pipe, and a relative distance between the pressure member and the retainer is limited by a fixing member including the pipe joint body.