The invention discloses a noise-reducing door based on big data and a use method thereof. The noise-reducing door includes a working box, wherein the working box is internally provided with a work space. The front and rear end walls of the work space communicate with an outside space. The lower end wall of the work space is fixedly with a lifting motor, wherein the upper end surface of the liftingmotor is connected with a first threaded rod through power, and the first threaded rod is connected with a lifting block in a threaded fit mode. A rotating space is arranged in the lifting block, andthe right end wall of the rotating space communicates with the work space. The rotating space is slidably connected with a columnar block and the right end of the columnar block penetrates through the right end wall of the rotating space and is located in the working space. A flat block is arranged on the right side of the columnar block, wherein the flat block is internally provided with a linkage space. The device has the advantages of simple structure and convenient operation, automatic sealing process can be carried out on the four sides of the soundproof glass door, and excess glue can be removed after automatic sealing to achieve better sealing.