A bent pipe (10) and a semiconductor refrigeration refrigerator with the bent pipe (10). The bent pipe (10) is used for allowing fluid to flow in the bent pipe (10), and comprises a plurality of bent parts (11); a plurality of connecting pipe sections (12), each of the connecting pipe sections being connected to every two adjacent bent parts (11); and position fixing pieces (14) that are sequentially fixed on bent parts (11), at a same side, of the bent pipe (10) at different positions along the length directions of the position fixing pieces (14). Because of the position fixing pieces (14) in the bent pipe (10) and the semiconductor refrigeration refrigerator, at least some pipe sections of the bent pipe (10) can be kept in a bent shape, so that the bent angle of the bent pipe (10) is kept unchanged, and therefore refrigerating fluid in the semiconductor refrigeration refrigerator can flow reliably in the bent pipe (10) to be effectively evaporated or condensed.