The invention discloses a textile fabric dewatering device and belongs to the technical field of textile equipment. The textile fabric dewatering device comprises a box body, a first conveying roller, a first tensioning roller, a second conveying roller, a third conveying roller, a second tensioning roller, a fourth conveying roller and a fifth conveying roller are arranged in the box body, a supporting plate is arranged between the second conveying roller and the third conveying roller, a moving rod is arranged at the center of the supporting plate in a penetrating mode, one end of the moving rod is connected with a moving plate, the other end of the moving rod is connected with a beating plate, the bottom end of the supporting plate is connected with a spring, the other end of the spring is connected with the top end of the beating plate, a first rotating shaft and a second rotating shaft are arranged between the moving plate and the supporting plate, a first cam is installed on the first rotating shaft, and a second cam is installed on the second rotating shaft. Through mutual cooperation of the first cam, the second cam, the moving plate, the moving rod, the supporting plate, the spring and the beating plate, the surface of fabric can be beaten, beating dewatering treatment is conducted on the fabric, and the beating plate can beat the fabric once every time the fabric is rotated by 180 degrees.