The utility model relates to a lifting frame integrated assembly for auxiliary equipment of a three-dimensional (3D) stereoscopic image projecting and playing system assembly. The lifting frame integrated assembly is provided with a main body frame of which the upper end is provided with a telescopic ceiling fixing bracket; the upper part, the middle part and the lower part of the main body frame are respectively provided with a bracket plate with adjustable front and rear pitch angles, wherein the middle-layer bracket plate and the lower-layer bracket plate are respectively used for stacking and fixing two projectors from top to bottom; and the two bracket plates at the upper part and the middle part are respectively provided with a horizontal polariscope bracket inserting groove used for inserting a polariscope bracket. The lifting frame integrated assembly has the advantages that the structure is simple, the assembly and the installation are convenient, the projection angles of the projectors are easy to be adjusted and fixed, and the focusing effect of the polariscope is good and the like.