Abstract: This paper discussed the design of combustion system, control system and safety system in flash fire generated system of the Pyroman. Based on the fire environment and fire damage in battle field, the heat flux of the flash fire is determined to be 67~ 84 kW/m2 in 4 s. Based of the formula for calculating the heat value of propane burning, it is computed that the distance between burner and Pyroman is 0.75 ~1m and the pressure of burner is 34 ~207 kPa. Depending on the relationship between the pressure and volume, a buffer tank with the volume of 345 L and working pressure of 300 kPa is designed, equipped with stable gas supply line with gas pressure fluctuation within 5%. The embedded control system is adopted to provide integrated graphical man-machine interface, all operational conditions are visual directly. Monitoring and safety systems are mounted and safe operation is ensured.