The utility model provides an electrical switch state warning device and an electrical cabinet, the electrical switch state warning device comprises a lock body and a blocking cover detachably installed on the lock body, the lock body is provided with a slot, and the blocking cover comprises a
first insertion tongue and an opening which are respectively arranged on two opposite sides in a first direction of the blocking cover; a
handle position is arranged between the first inserting tongue and the opening, the blocking cover is detachably connected with the lock body, and in the first state, the first inserting tongue is matched with the inserting groove; the blocking cover further comprises a second inserting tongue arranged on one side of the blocking cover in the second direction, the second inserting tongue is located on the periphery of the
handle position, an included angle is formed between the second direction and the first direction in the circumferential direction of the center of the
handle position, and the inserting direction of the second inserting tongue is the same as the inserting direction of the first inserting tongue. The electrical switch state warning device can be switched to a second state, and in the second state, the
first insertion tongue is idle, and the second
insertion tongue is matched with the
insertion groove. The electrical cabinet comprises an electrical switch state warning device installed at a switch handle. On the premise that a blocking cover does not need to be additionally arranged, the device can be used in cooperation with handles located at two different stations.