The utility model relates to a switch device, in particular relates to a gas-insulated metal-enclosed switch suitable for low temperature and high pressure and belongs to the ultra-high-voltage electric equipment technical field. The gas-insulated metal-enclosed switch is composed of main components such as an ultra-high-voltage alternating current circuit breaker, ultra-high-voltage alternating current isolation switches, an ultra-high-voltage alternating current grounding switch, externally-installed current transformers, main busbars and a branch busbar and a line outgoing bushing; the circuit breaker is arranged vertically or horizontally and is of a miniaturized pneumatic arc extinguishing chamber structure; the large-diameter branch busbar is adopted; the long-creepage distance bushing is adopted; and the components are arranged in independent air chambers, so that independent air inflation and deflation can be realized. The gas-insulated metal-enclosed switch suitable for low temperature and high pressure has the advantages of compact structure, small size, low temperature resistance, high insulation level, flexible configuration, simple maintenance and long maintenance cycle, and can reliably operate in high-altitude and seismic areas.