The invention provides an alignment closing-up device for a material bag bale sewing process. The alignment closing-up device is arranged on a bale sewing thread of the material bag bale sewing process and mainly consists of an underframe component (1), a clamping component (2) and a nylon tow chain component (3), wherein the underframe component (1) comprises a bag opening closing-up device and a chain wheel driving device; the clamping component (2) comprises a movable trolley component (25); the chain wheel driving device of the underframe component (1) can be used for enabling the clamping component (2) to move back and forth by virtue of the movable trolley component (25); the clamping component (2) is used for conveying tidied material bags to the bag opening device of the underframe component (1) so as to seal bag openings; the nylon tow chain component (3) is used for assisting the movable trolley component (25) to finish an operation of stopping in a proper position. The alignment closing-up device can be used for saving manpower, reducing the failure rate, reducing fault losses, improving the production efficiency and providing a new technical support for a modern automatic production line.