The invention relates to a bus terminal accessory of an ethylene-propylene insulation copper pipe, and belongs to the technical field of power equipment. The accessory comprises a hollow insulation pipe and semiconduction stress cones, wherein the semiconduction stress cones are arranged at one end of the insulation pipe and are in hollow truncated cone shapes, one end with a large radius of each semiconduction stress cone faces the insulation pipe, the semiconduction stress cones are wrapped by the insulation pipe, and a plurality of umbrella skirts are arranged on an outer surface of the insulation pipe. In the bus terminal accessory of the ethylene-propylene insulation copper pipe, provided by the invention, a liquid silicone rubber material is adopted, the accessory is formed by die pressing high-temperature curing, the semiconduction stress cones are overlapped with the insulation pipe to achieve an effect of uniform insulation shielding, and the radial field intensity and longitudinal field intensity of an insulation shielding opening can be perfectly uniform; the insulation layer is provided with umbrella skirts, the insulation problem of a voltage of a semiconduction outer side can be ensured very well by the insulation layer, and meanwhile, the voltage problem of the whole bus terminal is ensured; and the umbrella skirts are used for extending the creepage distance of a high potential and a low potential very well, and the subsequent process of a bus due to the creepage distance problem is saved.