Auxiliary special tool for disassembling combined electrical appliances comprises an upper clamping plate and an upper clamping plate. A push rod is installed between the upper portions of the upper clamping plates. A quick and stable disassembling device is installed between the push rod and one upper clamping plate. A buffer pipe is installed on the upper portion of the push rod, the buffer pipeis a tubular shell with a sealed upper end, and the a piston is installed at the upper end of the push rod. The auxiliary special tool for disassembling the combined electrical appliances solves theproblems of poor stability, low safety and inconvenient operation in the traditional method. The traditional method needs the coordination of one person to complete. According to the auxiliary specialtool for disassembling the combined electrical appliances, one-person operation can be easily achieved by the tool, the operation is more stable and more secure, and the efficiency of the disassemblywork of the combined electrical appliances is improved. An upper ejection rod and a lower ejection rod of the auxiliary special tool for disassembling the combined electrical appliances are combined,so that the pushing range of a hydraulic machine is improved and the operation of expanding the spacing of bus cylinders is achieved.