The invention relates to a marine organism degerming air refresher. Its active ingredients, which contain a chitosan quaternized hyaluronic acid derivative, an algal polysaccharide derivative, marine organism alpha-spiral cecropin and biological enzyme, polyhexamethylene guanidine and a plant essence, are prepared into the marine organism degerming air refresher by a special technology. The marine organism degerming air refresher is applicable to be used in environments such as restaurants, hotels, hospitals, markets, banks, schools, homes, offices, automobiles and the like, can be used to effectively remove peculiar smell in a closed environment, kill bacteria in the air and control the spread of typhoid, influenza, dysentery, pinkeye, gonorrhea and various skin diseases, and will not stimulate and corrode object surface, skin and respiratory tract. The formula of a marine organism active element bacteria-removing liquid contains the following components of: by weight, 0.5-1.5% of the chitosan quaternized hyaluronic acid derivative; 0.5-1.0% of the algal polysaccharide derivative; 4.0-6.0% of the marine organism alpha-spiral cecropin; 1.5-3.0% of polyhexamethylene guanidine; a proper amount of the plant essence; and purified water added to 100%.