Aimed at fuel-rich propellant based on boron having high heat value and poor combustion performance,a method of measuring burning peculiarity with low cost is introduced. The experiments were carried out in wider range of different combination of three kinds of important ingredients of propellant,and the combustion district of the fuel-rich propellant based on boron is given. At the same time,it was found there is a appropriate proportion between metal and binder which makes the propellant hold optimal combustion performance when the content of oxidant is fixed. Considering of the technological characteristics of the propellant,the adjustment range of the combustion performance is given.