The invention relates to an additive capable of being guided into rubber composition as well as preparation and application thereof. A chemical structure formula of the additive is shown in the following description, wherein the n is metal M in an oxidation state, and a numerical value of the n is 2 or 3 or 4; the A is one of oxygen, sulfur, carbon, nitrogen, phosphorus or silicon, and the x is larger than or equal to 0 and smaller than or equal to 10; the B is one of oxygen, sulfur, carbon, nitrogen, phosphorus or silicon, (AxBy)m shows that atoms are connected through chemical bonds, and they is larger than or equal to 0 and smaller than or equal to 10; the A and the B are not the same element, and the x and the y are not 0 at the same time; the m is larger than or equal to 0 and chains, alicyclic hydrocarbon or aromatic compound with the carbon atom number as 0 to 50; the R3 and the R4 are aliphatic chains or alicyclic hydrocarbon with the carbon atom number as 0 to 50; the a and the b are positive integers. The additive disclosed by the invention can be guided into the rubber composition, so that hardness, wet skid resistance, dynamic mechanic property and tensile property ofthe rubber are comprehensively improved; even in a part of examples, the rubber compositions containing the rubber additive have the advantages of improved shore hardness, improved elongation at breakand improved wet skid resistance.