Citrus trees (Citrus spp.) one of the main fruit crops worldwide, currently, due to excessive use of inorganic fertilizers, there is a serious threat to human health and the environment. The use of various types of biofertilizers like nitrogen fixers, phosphorus solubilizers, phosphorus mobilizers, and potassium solubilizers enhancing citrus growth, both directly by increasing resource acquisition (nitrogen, phosphorus, and essential minerals), producing Siderophore, stimulate Phytohormone production, or indirectly by increase plant tolerance of pathogens as a part of integrated pest management, and maintain soil fertility and protect the environment.