The utility model discloses an outdoor chair with a built-in cushion. The outdoor chair comprises a chair body, a cushion and a cushion retraction and release mechanism, wherein the chair body comprises chair legs and a back; the cushion retraction and release mechanism comprises a cushion reel used for hanging the cushion, an cushion retraction and release opening and a volute spiral spring for controlling the cushion to withdraw and roll; the volute spiral spring is arranged on a spring fixing device; the spring fixing device is provided with a rotating shaft, a fixed pin of the volute spiral spring and a screw hole for mounting the spring fixing device; a shaft lever of a rotating shaft rod is connected with the cushion; two ends of the rotating shaft are connected with the volute spiral spring; the spring fixing device is fixed with the back of the chair through a screw. According to the outdoor chair disclosed by the utility model, the cushion and the cushion retraction and release mechanism are additionally arranged on the traditional outdoor chair, and the cushion can be cleared, and a user can better use the chair in various moist and cold environments.