An automatically auto-sensing flood protection roller shutter with auto-locating reinforced column, including: a door plate, which is composed of a plurality of door panels, which can be disposed in between two frames or contained in a storage device; a casing, which is provided above the door plate and is provided with a motor, a hydraulic pump, an automatic controller, an uninterruptible power system, a storage device, a downward-pressing hydraulic cylinder and a driving device in the interior thereof; two frames mounted on two sides of the door plate oppositely to dispose a plurality of said door panels; a storage device, wherein at left and right inner walls of which are provided respectively with an overhead rail in a horizontal direction, a guide rail in a vertical direction, one end of each of the guide rails being bonded respectively with a connecting branch rail, and a gear being provided respectively at the shortest distance between each of the overhead rails and each of the guide rails, a chain being engaged with each of the gears, each of the chains can move along with each of the overhead rails and each of the guide rails; a downward-pressing hydraulic cylinder, which is provided in said casing or frame, a downward-pressing plate being provided at the lower end thereof to press the door plate; a sideward-pressing hydraulic cylinder, which is provided in said frames, a push lever being connected to the lower end thereof; a water level detector, which is provided in underground space for a waterproof system to be turned on automatically once a certain water level is detected, characterized in that a reinforced column is provided behind the door plate, and a vertical motor is provided at the upper end thereof and a horizontal motor is provided in the driving device being provided or manual operation to drive for transverse movement, wherein the inner chamber at the lower end of the reinforced column is provided with a bolt and a vertical motor; and a driving device is provided at the lower portion in the casing, wherein a fixation joint and a bearing set are provided at each of the two inner walls thereof, wherein the two ends of a guiding rod are fixed respectively in said two fixation joints, wherein one end of a guiding screw and one end of a transmission shaft are fixed in said two bearing sets, wherein the other end of said guiding screw and the other end of said transmission shaft are butted mutually, and the vertical motor is provided at the upper end of the reinforced column, and the horizontal motor is provided in the driving device. a door plate, which is composed of a plurality of door panels, which can be disposed in between two frames or contained in a storage device; a casing, which is provided above the door plate and is provided with a motor, a hydraulic pump, an automatic controller, an uninterruptible power system, a storage device, a downward-pressing hydraulic cylinder and a driving device in the interior thereof; two frames mounted on two sides of the door plate oppositely to dispose a plurality of said door panels; a storage device, wherein at left and right inner walls of which are provided respectively with an overhead rail in a horizontal direction, a guide rail in a vertical direction, one end of each of the guide rails being bonded respectively with a connecting branch rail, and a gear being provided respectively at the shortest distance between each of the overhead rails and each of the guide rails, a chain being engaged with each of the gears, each of the chains can move along with each of the overhead rails and each of the guide rails; a downward-pressing hydraulic cylinder, which is provided in said casing or frame, a downward-pressing plate being provided at the lower end thereof to press the door plate; a sideward-pressing hydraulic cylinder, which is provided in said frames, a push lever being connected to the lower end thereof; a water level detector, which is provided in underground space for a waterproof system to be turned on automatically once a certain water level is detected, characterized in that a reinforced column is provided behind the door plate, and a vertical motor is provided at the upper end thereof and a horizontal motor is provided in the driving device being provided or manual operation to drive for transverse movement, wherein the inner chamber at the lower end of the reinforced column is provided with a bolt and a vertical motor; and a driving device is provided at the lower portion in the casing, wherein a fixation joint and a bearing set are provided at each of the two inner walls thereof, wherein the two ends of a guiding rod are fixed respectively in said two fixation joints, wherein one end of a guiding screw and one end of a transmission shaft are fixed in said two bearing sets, wherein the other end of said guiding screw and the other end of said transmission shaft are butted mutually, and the vertical motor is provided at the upper end of the reinforced column, and the horizontal motor is provided in the driving device.