Multi-stage altitude work ladder

The utility model relates to a ladder, in specific to a field overhead multi-node combined ladder. The utility model comprises a plurality of steps connected between two hollow poles; the hollow poles are connected by a connecting piece between in a movable way; both ends of the connecting piece is equipped with the stem for the hollow poles; the stem protrudes in the middle and the middle part is equipped with a through hole in the direction perpendicular to the axis of the pole'one side of the connecting piece is penetrated through the through hole by a bolt and fixed with one end of a connecting arm on the side; the connecting arm is a 11-shaped one and the upper part of the other end of the connecting arm is fixed with an angle iron; the angle iron is fixed with a post by a U-shaped staple bolt; the highest node of the ladder is equipped with a seat bracket on the upper end. The utility model of multi-node overhead ladder has a simple structure and is convenient to be folded; the utility model solves the problem that long ladder is not convenient for transportation and reduces the labor intensity; people can also adopt a sitting stance in operation with this ladder and the utility model ensures safety.