The invention discloses a subway non-power adjusting movable louver and a working method thereof. The subway non-power adjusting movable louver comprises a louver frame, a plurality of movable louverblades are arranged in the louver frame, the top of each movable louver blade is connected with an upper rotating shaft, the upper rotating shafts are connected with the bottoms of upper torsional springs, the tops of the upper torsional springs are connected with upper fixed rings, and the upper fixed rings are fixed to an upper beam of the louver frame; and the bottom of each movable louver blade is connected with a lower rotating shaft, the lower rotating shafts are connected with the tops of lower torsional springs, the bottoms of the lower torsional springs are connected with lower fixedrings, the lower fixed rings are fixed to a lower beam of the louver frame, and a movable limiting column is connected to the lower beam of the louver frame through hinges. According to the subway non-power adjusting movable louver and the working method thereof, natural ventilation and air exchange of an underground station in transition seasons is achieved, and the problem of severe thermal environment in the station in the severe cold season is solved.