The utility model belongs to the technical field of escape equipment, and particularly relates to a portable safety escape ladder which comprises a storage box, mounting holes are formed in the four corners of one end in the storage box, expansion bolts are installed in the mounting holes in a penetrating mode, and supporting holes are formed in the middles of the two sides of the inner wall of the storage box. And a supporting rod penetrates through the interiors of the two supporting holes, a limiting circular plate is welded to one end of the supporting rod, and a gear is welded to the other end of the supporting rod. Through cooperative use of limiting circular plates and gears installed on the two sides of a supporting rod, installation of the supporting rod can be limited, through cooperative use of the gears, limiting boxes, guide sliding holes, limiting springs, guide sliding blocks and convex tooth blocks, rotation of the supporting rod can be limited, and through use of the supporting rod installed in the storage box, the storage box is convenient to use. The
rope ladder can be rolled and stored, a user can deploy and use the
rope ladder conveniently during escape, the
rope ladder is convenient to recycle after being used, and the escape ladder is convenient to use.