The work aims to sort out and summarize the optimization method of improving the flame retardancy, hydrophobicity and environmental friendliness of flame retardant packaging paper, so as to further optimize the flame retardant packaging paper. The performance requirements, evaluation methods and standards of flame retardant packaging paper were reviewed, the application trend of flame retardant used in packaging paper was analyzed, and the method to improve the hydrophobicity and environmental friendliness of flame retardant packaging paper was studied. In recent years, the flame retardancy, mechanical strength, hydrophobicity and recyclability of flame retardant packaging paper have been greatly improved. The performance of flame retardant packaging paper is still being optimized, with a good development prospect.