An extendable display screen structure, wherein a hollow part is provided on at least one side of a main base and two guiding components are symmetrically provided in the main base along two sides of the hollow part; at least one driving component is provided in the main base, and the driving component is provided with a power source to drive the driving component to move along the guiding component; at least one side of a flexible screen is wound around an outer periphery of at least one rotating shaft, the rotating shaft is rotatably disposed on a side of the driving component and forms linkage, the driving component, in linkage with the rotating shaft, moves along the guiding component out of the main base, whereby the flexible screen can be gradually released from the outer periphery of the rotating shaft to be extended outwards, and on the contrary, the driving component, in linkage with the rotating shaft, gradually moves into the main base, whereby the rotating shaft retracts the flexible screen.