The utility model relates to a high -tension switch cabinet, including the cabinet body and explosion -proof shell, the cabinet body is including operating panel, the last operation region that is used for stopping power transmission operation that is provided with of operating panel, explosion -proof shell is located last and the at least cover of operating panel is established the operation is regional. Above -mentioned high -tension switch cabinet embodies the basis that has specification and shape set up explosion -proof shell on operating panel not changing the cabinet, explosion -proof shell at least the cover to establish the opposed operation of operating personnel that stops power transmission operation regional, when the cabinet body was blasted, explosion -proof shell stopped the piece that splashes etc. Prevented that the injury from parking the operating personnel of electricity operation now, the protection human body near the health position of dangerous situation, forms security defense line one.