The invention relates to a biological-sterilization preservative for food processing. The active ingredients of the preservative are obtained by using an advanced biotechnology production process, and can be used for sterilization and preservation of food processing industries such as aquatic products, vegetables, fruits, milk products, bean products, beverages, cans and beers. With the economic globalization, the food hygiene and the food security become hot topics which take great concerns. Although the modern science and technology are in a certain level, food-borne diseases are not effectively controlled in developed countries and developing countries, and still severely endanger the health of the people, thereby becoming one of the biggest concerns of all countries in the world. The common food preservatives in the market include benzoic acid, butyl hydroxyanisd (BHA) and butylated hydroxytoluene (BHT) which are chemical preparations, most of the common food preservatives have toxic and side effects to human bodies, are high in manufacturing cost and complex in production process. The invention aims at providing a biological-sterilization preservative for the food processing, which is capable of overcoming the defects in the existing products and belongs to pure biological preparations. Besides, the biological-sterilization preservative for the food processing is free of toxic and side effects, secondary pollution and residues, safe and stable, and capable of not changing the characteristics, the colors and the like of foods, and can not enable appliances to be denatured and aged in the food industry.