The latest development in the preparation of nano-scale combustion catalysts used in solid propellant was reviewed. Advantages and disadvantages of solid phase reaction method, electrolysis method,hydrothermal reaction method,precipitation method,hydrolysis method,sol-gel method and micro-lacteous method were stated and compared. The problems existed in the preparation study of nano-scale combustion catalysts used in solid propellant,the research directions of the preparation study and emphases in the future were also pointed out.