The invention discloses a manufacturing method for a flexible bend of a sintered ring cooler, and the manufacturing method is a design mainly for solving the problem that an existing flexible bend is not high in manufacturing precision and is complicated in manufacturing process. The manufacturing method for the flexible bend of the sintered ring cooler, disclosed by the invention, comprises the following steps: performing analogue simulation on the flexible bend and obtaining a drawing; manufacturing a mold according to a two-dimensional projection drawing of the flexible bend; bending the flexible bend on the obtained mold. According to the manufacturing method for the flexible bend of the sintered ring cooler, the two-dimensional projection drawing is obtained by analogue simulation of the flexible bend and drawing, and subsequently the flexible bend is bent after the mold is manufactured according to the two-dimensional drawing, so the manufactured flexible bend is high in precision and high in consistency with the orbit of the ring cooler, and has the advantages of providing convenience for installation of the flexible bend of the ring cooler, saving labor and materials and also effectively preventing occurrence of adverse problems such as rail gnawing, caused by low precision of the flexible bend, of the ring cooler.