Fabricated ladder stand device

The utility model relates to the technical field of assembly type crawling ladders, in particular to an assembly type crawling ladder device which comprises a plurality of standard knot frames and pedals, the standard knot frames are combined into a stair shape, limiting columns are fixedly installed on the left sides and the right sides of the front end and the rear end of the lower end of each standard knot frame, and limiting holes are formed in the left sides and the right sides of the front end and the rear end of the upper end of each standard knot frame. The limiting columns at the lower ends of the two standard knot frames in the vertical direction are inserted into the limiting holes, the two standard knot frames in the horizontal direction are fixed together through bolts, the pedal is in an L shape, and the device can adapt to different general situations in different scenes such as elevator shafts, interlayer in floors and the like where the height difference is large, temporarily built stairs, cl