The invention discloses organic-inorganic hybridized particles and a preparation method and application thereof.The organic components and inorganic components of the organic-inorganic hybridized particles are mutually connected through covalent bonds, the hybridizing mode of the organic components and the inorganic components is mutual alternative insertion and mutual connection, rather than a core-shell structure, namely no phase separation boundary exists between the organic components and the inorganic components.The organic-inorganic hybridized particles are used for cement-based material modification, the higher the dosage is, the improvement of the mechanical properties (compressive strength, breaking strength and tensile strength) of the particles the more obvious is, the compressive strength can be improved by 13-30%, the breaking strength can be improved by 24-46%, and the tensile strength can be improved by 20-53%.