The utility model discloses a high speed rail passenger train changes in temperature wind reposition of redundant personnel air supply channel system, it includes: the delivery conduit, be provided with cold wind chamber and warm braw chamber in the delivery conduit, be provided with the cold wind export that is linked together with the cold wind chamber on the delivery conduit, and the cold wind of cold wind export is supply air downwards from the carriage top, the warm braw way, one end and warm braw chamber that the warm braw was said are linked together, and the other end that the warm braw was said extends to the carriage bottom, thereby makes warm braw from upwards air supply of carriage bottom in the warm braw is said. The utility model discloses not only can improve passenger's comfort level, can reduce moreover and send fan energy consumption, reach energy -conserving purpose.