A method for producing a cleansing or disinfecting composition according to the present invention comprises the steps of: (a) producing a green tea extract from green tea leaves, green tea stems, and green tea seeds (b) producing a green tea mixture by adding an antioxidant and a stabilizer to the green tea extract and (c) producing a cleansing or disinfecting composition by adjusting the pH of the green tea mixture, and thus a cleansing or disinfecting composition can be produced which exhibits a strong antiviral activity as the cleansing or disinfecting composition is produced using natural material, the green tea extract, and which can be conveniently used even by a person with a skin disease as the irritation to the body is low from the reduced use of chemical substances which are added to the cleansing or disinfecting composition. Furthermore, the produced cleansing or disinfecting composition has increased shelf-life from the green tea constituent having been treated with an antioxidant and a stabilizer, thus facilitating commercialization, and has high antiviral and antibiotic activities from comprising a variety of natural additives and porous beads, thus allowing the use as a hand sanitizer for inhibiting spread and propagation of viruses, a cleanser for the body, a disinfectant for hospital rooms, or a disinfectant for animals. As such, a multi-purpose composition allowing convenient and rapid uses in various respiratory diseases, which are highly dependent on vaccines and for which the effectiveness of existing drugs is limited, can be produced.Linvention concerne un procédé de production dune composition nettoyante ou désinfectante comprenant les étapes de : (a) production dun extrait de thé vert à partir de feuilles de thé vert, de tiges de thé vert et de graines de thé vert (b) production dun mélange de thé vert par lajout dun antioxydant et dun stabilisant à lextrait de thé vert et (c) production dune composition nettoyante ou désinfectante par la r