An apparatus for manufacturing a cell stack for a secondary battery, the apparatus comprising: a stack table on which a negative electrode plate and a positive electrode plate are sequentially stacked with a separator interposed therebetween; an electrode-plate-stacking-position adjusting means configured to adjust a position of the stack table so that the negative electrode plate and the positive electrode plate are stacked at a constant position regardless of the number of times of stacking the negative electrode plate and the positive electrode plate; a clamping means configured to press, toward the stack table, edge portions at one side and the other side of each of the negative electrode plate, the positive electrode plate, and the separator, which are stacked on the stack table, and to clamp the edge portions of the negative electrode plate, the positive electrode plate, and the separator; a drive means configured to reciprocally turn the stack table, the electrode-plate-stacking-position adjusting means, and the clamping means to both sides so that the separator supplied to the stack table is folded in a zigzag shape and the negative electrode plate and the positive electrode plate are alternately stacked between folded portions of the separator; and a support means configured to support the stack table, the electrode-plate-stacking-position adjusting means, the clamping means, and the drive means, characterized in that the electrode-plate-stacking-position adjusting means comprises: a stacking position adjusting servo motor installed on a bottom of a hollow portion formed in a skirt part of a tilting frame of the drive means; a stacking position adjusting ball screw connected to a rotating shaft of the stacking position adjusting servo motor, penetrating the skirt part, and penetrating a second lift plate disposed at a lower side of the skirt part, and the stacking position adjusting ball screw being configured to be engage with and penetrate a stacking position adjusting ball screw nut installed on the second lift plate; and a third lift plate disposed between a head part of the tilting frame and the stack table to support the stack table and connected to the second lift plate by means of second connecting rods, and the stacking position adjusting servo motor lowers the second lift plate, the third lift plate, and the stack plate by rotating the stacking position adjusting ball screw by a length corresponding to a thickness of the stacked negative electrode plate or the stacked positive electrode plate during a process of manufacturing a cell stack. a stack table on which a negative electrode plate and a positive electrode plate are sequentially stacked with a separator interposed therebetween; an electrode-plate-stacking-position adjusting means configured to adjust a position of the stack table so that the negative electrode plate and the positive electrode plate are stacked at a constant position regardless of the number of times of stacking the negative electrode plate and the positive electrode plate; a clamping means configured to press, toward the stack table, edge portions at one side and the other side of each of the negative electrode plate, the positive electrode plate, and the separator, which are stacked on the stack table, and to clamp the edge portions of the negative electrode plate, the positive electrode plate, and the separator; a drive means configured to reciprocally turn the stack table, the electrode-plate-stacking-position adjusting means, and the clamping means to both sides so that the separator supplied to the stack table is folded in a zigzag shape and the negative electrode plate and the positive electrode plate are alternately stacked between folded portions of the separator; and a support means configured to support the stack table, the electrode-plate-stacking-position adjusting means, the clamping means, and the drive means, a stacking position adjusting servo motor installed on a bottom of a hollow portion formed in a skirt part of a tilting frame of the drive means; a stacking position adjusting ball screw connected to a rotating shaft of the stacking position adjusting servo motor, penetrating the skirt part, and penetrating a second lift plate disposed at a lower side of the skirt part, and the stacking position adjusting ball screw being configured to be engage with and penetrate a stacking position adjusting ball screw nut installed on the second lift plate; and a third lift plate disposed between a head part of the tilting frame and the stack table to support the stack table and connected to the second lift plate by means of second connecting rods, and the stacking position adjusting servo motor lowers the second lift plate, the third lift plate, and the stack plate by rotating the stacking position adjusting ball screw by a length corresponding to a thickness of the stacked negative electrode plate or the stacked positive electrode plate during a process of manufacturing a cell stack.