Sliding roll module, pulling force application device thereof and sliding roll display device

The invention discloses a sliding roll module, a pulling force application device thereof and a sliding roll display device, and relates to the technical field of display. A first force applying part of the tension applying device is used for being connected with a cover plate of a display module in the sliding and rolling module, and a second force applying part of the tension applying device is used for being connected with a supporting piece of the display module in the sliding and rolling module, so that the cover plate and the supporting piece share the tension applied by the tension applying device together. Therefore, when one end of the display module is bent and pulled to the non-display surface by the tension applying device, dislocation of each film layer in the flexible display panel in the display module can be avoided, cracks of the flexible display panel can be avoided, the reliability of the flexible display panel is ensured, and the yield of the sliding and rolling display device is further i