A cubicle-type gas insulated switchgear comprising: a bus bar compartment and an VCB compartment vertically joined to each other, each of which is filled with insulating gas; a vacuum valve disposed vertically in the VCB compartment; plate-shaped contacts (43a, 43b) connected to each of the upper and the lower ends of the vacuum valve severally; main circuit conductors (8, 33) disposed in the VCB compartment, wherein each end of the main circuit conductors (8, 33) has a finger contact (44a, 44b) to make fit-connection correspondingly with the respective plate-shaped contact (43a, 43b), wherein each of the plate-shaped contacts (43a, 43b) and each of the finger contacts (44a, 44b) are disposed on the line that connects between the plate-shaped contacts (43a, 43b) to permit connecting and disconnecting with a lateral operation in a first direction perpendicular to the vertical direction, and each of the longitudinal axes lines of the plate-shaped contacts (43a, 43b) and of the finger contacts (44a, 44b) and of the main circuit conductors (8, 33) are aligned nearly on the extension line of axes of the moving lead and the fixed lead disposed in the vacuum valve, characterised in that disconnecting switches (7, 11) are disposed in the bus bar compartment and the equipment respectively, wherein each of the disconnecting switches (7, 11) is connected to each of the main circuit conductors (8, 33) severally, and said disconnecting switches (7, 11) and a vacuum circuit breaker having said valve are disposed for each of three phases in a row extending in a second direction which is perpendicular to said first direction and said vertical direction. a bus bar compartment and an VCB compartment vertically joined to each other, each of which is filled with insulating gas; a vacuum valve disposed vertically in the VCB compartment; plate-shaped contacts (43a, 43b) connected to each of the upper and the lower ends of the vacuum valve severally; main circuit conductors (8, 33) disposed in the VCB compartment, wherein each end of the main circuit conductors (8, 33) has a finger contact (44a, 44b) to make fit-connection correspondingly with the respective plate-shaped contact (43a, 43b), wherein each of the plate-shaped contacts (43a, 43b) and each of the finger contacts (44a, 44b) are disposed on the line that connects between the plate-shaped contacts (43a, 43b) to permit connecting and disconnecting with a lateral operation in a first direction perpendicular to the vertical direction, and each of the longitudinal axes lines of the plate-shaped contacts (43a, 43b) and of the finger contacts (44a, 44b) and of the main circuit conductors (8, 33) are aligned nearly on the extension line of axes of the moving lead and the fixed lead disposed in the vacuum valve, characterised in that disconnecting switches (7, 11) are disposed in the bus bar compartment and the equipment respectively, wherein each of the disconnecting switches (7, 11) is connected to each of the main circuit conductors (8, 33) severally, and said disconnecting switches (7, 11) and a vacuum circuit breaker having said valve are disposed for each of three phases in a row extending in a second direction which is perpendicular to said first direction and said vertical direction.