Operation and maintenance device applied to emergency power supply

An operation and maintenance device applied to an emergency power supply is characterized in that a crawling ladder device comprises a main frame body, a crawler belt and a driving mechanism, the main frame body comprises a vertical bottom surface, a side surface close to a ladder and a mounting surface opposite to the side surface close to the ladder, the mounting surface is provided with a mounting groove for mounting an emergency power supply box body, and the vertical bottom surface is provided with a power-assisted wheel; the side face of the near ladder is provided with a crawler belt groove, a front force bearing cross rod and a rear force bearing cross rod are fixedly arranged in the crawler belt groove in the advancing direction, the driving mechanism comprises a pair of crawler belt shaft sleeves, a driving gear, a transmission gear and a driving motor, the crawler belt is arranged on limiting ring grooves of the two force bearing cross rods in a sleeving mode, and the inner side face of the crawler