Because of the important position of fuses in high precision instruments and equipments, the development and design of fuses have become the focus of research. As Au nanowire is one of the prevalent high precision fuse materials, the traditional trial manufacture will waste a lot of money and manpower. Therefore, it is important to study the influence factors of fuses' fusing characteristics from the micro structure level by using molecular dynamics simulation method. In this paper, the effects

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... of different heating rates on the fusing characteristics and the fusing times of Au nanowires were simulated based on molecular dynamics simulations method. The results show that the higher the heating rate of Au nanowires within a certain range, the shorter the fusing time and the higher the fusing temperature. The different heating rates have no obvious influence on the fusing positions, but have remarkable influence on the neck down length during the fusing process. When the heating rates are low, the necking parts are longer, so that the fused cross sections are in chain shapes. When the heating rates are high, the necking parts are shorter, which make the fused cross sections taper. The simulation method can effectively track the structural changes in the fusing process, and then guide the development and design of Au nanowire high-precision fuses for different application fields.