The invention provides an overhead outgoing line and load switch cabinet of armored metal enclosed switch equipment. An instrument chamber, a load switch chamber and a main bus-bar chamber in a metal armored enclosed switch equipment cabinet body of the switch cabinet are partitioned by metal plates; the load switch chamber is connected with a load switch; the load switch chamber and the main bus-bar chamber are provided with a load switch chamber voltage relief plate and a main bus-bar voltage relief plate respectively, the load switch chamber and the main bus-bar chamber are respectively provided with an arc airflow voltage relief channel, and the channel ports are formed at the top of the cabinet body; the load switch is connected with a main bus-bar of the main bus-bar chamber through a first connecting copper bar, and the main bus-bar is meanwhile connected with an overhead outgoing line; and the load switch is connected with an interbus through a second connecting copper bar. The overhead outgoing line and load switch cabinet of the armored metal enclosed switch equipment has the advantages that the switch cabinet is good in corrosion resistance, high voltage in the cabinet and control low voltage are separated through steel plates, the switch cabinet is safe and high in integration degree, five-prevention interlocking functions are achieved, the switch cabinet is convenient and fast to install, the margin of safety is promoted by over 15%, and bus cleaning maintenance can be reduced or maintenance-free effect can be achieved.