▎ 摘　　要

NOVELTY - Organic-inorganic composite comprises inorganic antibacterial agent and/or organic antibacterial agent, where the inorganic antibacterial agent comprises inorganic material loaded with metal particles. USE - The organic-inorganic composite is useful for long-term protection from microorganisms. ADVANTAGE - The organic-inorganic composite has efficient inactivation effect on microorganisms such as viruses and bacteria, has improved compatibility between organic matter and inorganic matter, coats the organic antibacterial agent and the inorganic antibacterial agent, avoids the migration of the organic antibacterial agent, prolongs the action time of the composite antibacterial agent, and achieves slow release effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the organic-inorganic composite involving adding inorganic antibacterial agent and solvent into a reaction kettle, adding coupling agent and organic antibacterial agent, mixing, dispersing at a high speed, adding required preparation raw materials in turn, and mixing to obtain the product.