The invention discloses a winding device for the production of cotton sewing thread which can be easily disassembled, comprising a box body, a feed port is opened on the side wall of the box body, and guide wheels are fixedly connected to the top and bottom of the feed port , the upper end of the box body is fixedly connected with a drive motor, and the output end of the drive motor is fixedly connected with a first rotating shaft, and the first rotating shaft is arranged vertically through the top of the box body and extends to the inside thereof, and the first rotating shaft The part of the rotating shaft located in the box body is provided with a winding part and a transmission mechanism. The transmission mechanism is rotatably connected to the inner wall of the box body. A smoothing mechanism is fixedly connected to the top of the box body. The smoothing mechanism and the transmission mechanism Mesh connection settings. The present invention realizes centralized collection of floating cotton wool through a smoothing mechanism, a dust suction mechanism, a filtering mechanism, etc., and can smooth and compact the cotton thread being wound, which is beneficial to improving the aesthetics of the cotton thread.