A foldable mobile terminal with a flexible screen is provided in the present disclosure. The foldable mobile terminal with the flexible screen comprises a housing panel, a flexible display, a side plate, a primary back plate, an extending back plate, a support hinge storage case, a plurality of hinge operation buttons, a display pulling belt storage case, and a display pulling belt. A support hinge is disposed inside the support hinge storage case, and one end of the display pulling belt is fixedly connected to the flexible display extending over the support hinge storage case.