In the previous works of the author, a generalized method was developed for the problems of prediction of effective elastic characteristics of composites with random structures, when all the inclusions are characterized by common properties (e.g. random homogeneous, deterministic homogeneous, and heterogeneous elastic characteristics) and by deterministic geometrical shape and orientation under random mutual positioning within composite volume. In this work, a generalized method of self-consistency is developed to make possible the determination of effective elastic properties of composites with hybrid random structures, when each type of inclusions, in the general case, is characterized by particular elastic properties, geometrical shape, variation of dimensions, orientation, and type of mutual positioning with respect to the inclusions of the same or other type within the composite volume.