The invention relates to a method for manufacturing a flexure cylindrical mirror condenser for a line-focus solar system, which comprises the following steps of sheet selection, support arrangement, hThe invention relates to a method for manufacturing a flexure cylindrical mirror condenser for a line-focus solar system, which comprises the following steps of sheet selection, support arrangement, hot bending and annealing, glass cutting, surface roughness detection and clustering, light path detection and clustering, and application of fine tuning concentrated line load, wherein the inside of aot bending and annealing, glass cutting, surface roughness detection and clustering, light path detection and clustering, and application of fine tuning concentrated line load, wherein the inside of a hot bending furnace is provided with a support capable of making glass rotate freely so as to prevent the glass from generating bending moment adverse to glass forming on the support saddle position.hot bending furnace is provided with a support capable of making glass rotate freely so as to prevent the glass from generating bending moment adverse to glass forming on the support saddle position.The manufacture method can improve the condensing effect, simplify the processing technology and reduce the manufacturing cost. The manufacture method can improve the condensing effect, simplify the processing technology and reduce the manufacturing cost.