Disclosed is a collapsible chair including a cylindrical main body 101 which is a major component of a collapsible chair, front and rear support poles 111 and 131 which support the main body 101 at a predetermined angle on front and rear side, respectively, seat back poles 121 and seat support poles 141 which are connected to the main body 101 to extend forward and upward, and a seat 151 whose opposite end portions are fixed by the seat back poles 121 and the seat support poles 141. The main body 101 has coupling holes 102 formed on opposite end portions thereof at a predetermined angle, first insertion holes 103 formed on opposite end portions thereof at a predetermined angle and an interval with the coupling hole 102.