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To grasp the key influence factors and influence rule during liquid fuel spray impinging combustion and to investigate the strengthening mechanisms of impinging streams on spray combustion, the spray impinging combustion experiment platform was designed and established. The flame shape was recorded by digital camera, and the flame temperature distribution was measured by thermocouple and infrared thermal imager. The images of flame shape and temperature data were analyzed. The results show that when the same amount of fuel is consumed, the opposed nozzle impinging flame is more stable, and the flame temperature is higher with more continuous distribution. With the increasing of gas velocity, the combustion efficiency and the temperature of impinging flame zone are increased with latter stable value. With the decreasing of air/fuel ratio, the combustion efficiency is increased with latter decreasing, while the temperature of impinging flame zone is increased with latter stable value. With the decreasing of nozzle spacing, the combustion efficiency and the temperature of impinging flame zone are increased with latter decreasing. The closer the nozzle angle is to 180°, the higher the combustion efficiency and the flame temperature are, and the more stable the impinging flame zone is. [ABSTRACT FROM AUTHOR]