The use of a sodium borohydride (NaBH₄) in incendiary agent was investigated to improve the energy properties of the pyrotechnics. Orthogonal law and REAL software were used to design and calculate the heat of incendiary agent with sodium borohydride. Addition of 20% sodium borohydride can make the whole energy of incendiary agent increased by 14.3%, which provide a way to develop a new kind of pyrotechnics. An optimized formulation of incendiary agent is determined as Ba(NO₃)₂：RP：Mg：NaBH₄= 60：10：10：20. The experimental results of DSC analysis, mechanical sensitivity and burning show that the optimized formula with NaBH₄ have lower sensitivity (the 50% drop height is 30.2 cm) and better burning effects (the heat value is 3321.61 kJ·kg^－１) compared with that without NaBH₄, and are in good agreement with the formulation calculation results by REAL software. The research results provide an important basis for development of new pyrotechnics with high energy.