A flexible screen mobile terminal, comprising: a terminal main body , having a first main body surface for mounting a flexible screen ; a terminal auxiliary body , disposed at one end of the terminal main body , and having a first auxiliary body surface for mounting the flexible screen ; the flexible screen , lapped jointly on the first main body surface and the first auxiliary body surface ; and a screen support , configured to fix the flexible screen , and enable the flexible screen to be movably connected to the terminal auxiliary body via the screen support , the terminal main body and the terminal auxiliary body being detachably connected in a plug-connection mode, the terminal main body and the terminal auxiliary body in a separation state being capable of rotating relatively around an axis parallel to a plane of the flexible screen , the terminal auxiliary body being provided with a sliding groove perpendicular to the axis , enabling the screen support to slide on the sliding groove , and the screen support being slidably connected to the terminal auxiliary body via the sliding groove , characterized in that the screen support is provided with an auxiliary body limit block for limiting a relative sliding distance between the screen support and the terminal auxiliary body , and the auxiliary body limit block is disposed at one end of the screen support near the terminal auxiliary body , the auxiliary body limit block is a gear-like structure, and is rotatably mounted to the screen support via a rotation shaft, a rack structure matched with the auxiliary body limit block is provided in the sliding groove , and a relative position of the terminal auxiliary body and the screen support is controlled by cooperation of the gear-like structure and the rack structure. a terminal main body , having a first main body surface for mounting a flexible screen ; a terminal auxiliary body , disposed at one end of the terminal main body , and having a first auxiliary body surface for mounting the flexible screen ; the flexible screen , lapped jointly on the first main body surface and the first auxiliary body surface ; and a screen support , configured to fix the flexible screen , and enable the flexible screen to be movably connected to the terminal auxiliary body via the screen support , the terminal main body and the terminal auxiliary body being detachably connected in a plug-connection mode, the terminal main body and the terminal auxiliary body in a separation state being capable of rotating relatively around an axis parallel to a plane of the flexible screen , the terminal auxiliary body being provided with a sliding groove perpendicular to the axis , enabling the screen support to slide on the sliding groove , and the screen support being slidably connected to the terminal auxiliary body via the sliding groove , characterized in that the screen support is provided with an auxiliary body limit block for limiting a relative sliding distance between the screen support and the terminal auxiliary body , and the auxiliary body limit block is disposed at one end of the screen support near the terminal auxiliary body , the auxiliary body limit block is a gear-like structure, and is rotatably mounted to the screen support via a rotation shaft, a rack structure matched with the auxiliary body limit block is provided in the sliding groove , and a relative position of the terminal auxiliary body and the screen support is controlled by cooperation of the gear-like structure and the rack structure. <EOS>