Abstract. Since the Japan's A.NISHI designs a wall-climbing robots prototype which based on the principle of negative pressure in 1966, wall-climbing robots technology has been rapid development in the world. No matter from the aspects of adsorption methods, movement forms or application ways have made considerable progress, in the nearly 50 years of development history, although the various of research results emerge in endlessly , the application prospect of wall-climbing robots research are not optimistic and have few application results , and most of research are in the basic research stage and fall into the technical bottleneck .This paper combines the research status of magnetic adsorption climbing robot in china, and analysis the difficulties of existing technology and discuss future development and application prospect of wall-climbing robots.