Bacillus velezensis is a gram-positive and spore-forming bacterium. It has strong antibacterial activity and a broad antibacterial spectrum. The strain has the ability to produce a wide range of enzymes that possess potential applications in various fields such as protease production, fermented foods, pharmaceuticals, etc. In this study, based on the multi-omics B. velezensis FZB42 gene sequence and protein function prediction, etc., and discussing the bioinformatics application of B. velezensis , we elaborated that it has an important role in the fermented food industry, with its strong antim...