this application discloses a white - light hyperbranched conjugated polymer , a method for preparing the same and its use . the polymer uses a red phosphorescent ir complex as a core and polyfluorene derivative blue fluorescent materials as a framework which either contains or does not contain carbazole derivatives , and the white light hyperbranched polymers realize white - light emission by adjusting the content of the red phosphorescent ir complex connected using the complementation of blue and red color . the electroluminescent spectrum of the conjugated polymer in the present application covers the whole visible light emission area and is close to the pure white light emission , by which the conjugated polymer could be used as a material used in light - emitting layer to prepare the organic electroluminescent devices .