The sputtering and etching techniques of Ni-Cr film igniting resistor were studied in order to achieve even resistance and low firing voltage,at the same time,the parameter of igniting resistor was tested. The results show that the velocity of film sputter diminishes and the compact performance of film improves as sputtering power reduces. The resistance coherence of Ni-Cr film igniting resistor is good,and average firing voltage is 6.67 V when charge capacitance is 47 μF.