The present invention provides a kind of preparation method of antimicrobial composite material,Comprising a high molecular polymer and Organic modification inorganic clay are dispersed in one solvent of what,A pre-composition is formed,Then a silver nitrate is added in the pre-composition and is dispersed,The interlayer of the silver ion dispersion what Organic modification inorganic clay is enabled,And between mole ratio Jie what 0.05 ~ 0.3 of the repetitive unit of the silver nitrate and the high molecular polymer,A polymer composite is obtained,The polymer composite is immersed in a reducing solution again,Enable the silver ion reduction of the polymer composite at silver atoms,The preparation of the antimicrobial composite material can be completed,Furthermore the present invention goes back while providing a kind of antimicrobial composite material as made from the preparation method and the antimicrobial fluid containing the antimicrobial composite material.本發明提供一種抗菌複合材料的製備方法，包含將一高分子聚合物與有機改質無機黏土分散於一溶劑中，形成一預混物，接著將一硝酸銀加入該預混物中分散，令銀離子分散於該有機改質無機黏土的層間，且該硝酸銀與該高分子聚合物之重複單元的莫耳比值介於0.05~0.3之間，得到一高分子複合材料，再將該高分子複合材料浸入一還原液中，令該高分子複合材料的銀離子還原成銀原子，即可完成該抗菌複合材料的製備，此外本發明還同時提供一種由該製備方法製得的抗菌複合材料及含有該抗菌複合材料的抗菌液。
