In order to demonstrate the feasibility of amorphous alloy as a new type of micro-heater material， the amorphous alloy bridge wire micro-heater was designed and fabricated， and the influence of constituent components on the energy release effect of amorphous alloy material was studied by DSC thermal analysis. On this basis， the electrothermal temperature response， change in temperature coefficient of resistance and the electro-explosive characteristics of the amorphous alloy bridge wire micro-heater were investigated. Results show that the amorphous alloy is regarded as a metastable energetic material when it releases energy， and exhibits negative temperature coefficient of resistance during crystallization process， leading to that relative change in resistance is 6.38%， and the electrothermal energy transfer power is increased by 17.5%. Compared to the Ni-Cr bridge wire micro-heater with linear temperature coefficient of resistance， amorphous alloy bridge wire micro-heater characterizes a better energy release effect. These preliminarily demonstrate the feasibility of amorphous alloy as a promising initiator micro-heater material， and expand the approach on efficiency improvement of electrical initiator micro-heater.