Modularized totally-enclosed insulation switch cabinet

The invention provides a modularized totally-enclosed insulation switch cabinet, and relates to the field of electrical switch equipment. The modularized totally-enclosed insulation switch cabinet comprises a main air chamber module, an operating mechanism module, a plug-in type solid insulation bus module, a three-position isolation switch, a metal box body, a transmission device and a solid insulation inner cone type plug-in port. The plug-in type solid insulation bus module comprises a plurality of all-solid insulation U-shaped conductors, two ends of each U-shaped conductor are provided with solid insulation external cone type plug connectors, and the solid insulation external cone type plug connector at one end of each U-shaped conductor is used for being connected with a solid insulation internal cone type plug port of the modularized all-solid insulation switch cabinet. And the solid insulation outer cone type plug connector at the other end is used for being connected with a solid insulation inner con