Abstract: The present invention discloses a human body affinitive lubricating protective and repair gel, which combines photocatalyst (TiO2) particles with a disinfection material such as nano silver to produce a TiO2Ag compound, and mixes the compound with a filtered natural biological organism with a molecular weight below 50 Kbp and a concentration of 0.05˜5% including small molecules of collagen, chitin, chitosan, hyaluronic acid, vitamin C, and nano iron, and its pH value is adjusted to 6 which is close to the pH value of our skin, and thus the mixture constitutes a gel affinitive to human skins and non-toxic to human cells. An accessory ingredient such as an aromatic agent, a detergent, or a cosmetic agent is added in the manufacturing process to produce an emulsion or a paste for coating or spraying, which is used as a health or sanitation item such as a hand liquid soap, a cosmetic, a shampoo, or a disinfectant.