In order to investigate the performance of GH4099 high temperature nickel-based alloy by DC short electrical arc milling,hollow tubular graphite was used as the tool electrode and GH4099 was used as the workpiece material，the effects of input voltage,spindle speed and punching pressure on the material removal rate (MRR),tool electrode wear ratio (TWR),surface quality and metallographic structure of GH4099 were analyzed separately by single-factor experiments.The experimental results show that with the increase of input voltage and punching pressure,the MRR tends to increase and then decrease,while the TWR tends to decrease and then increase;the higher the input voltage is,the thicker the heat-affected layers is;increasing the punching pressure appropriately can reduce the phenomenon of short circuits,the number of micro-cracks and erosion holes on the surface of the workpiece and helps to improve the surface quality of the workpiece;the surface quality of the workpiece improves as the spindle speed increases.