Abstract: In order to simplify the construction process of the diagonal columns of natural draught dry cooling tower（NDDCT）,shorten the construction time and reduce the construction cost,this paper studied the technology of the new type concrete-filled steel tube X-shaped diagonal for NDDCT and applied it to a coal power integrated power plant project in Shaanxi.The engineering application practice shows that NDDCT with new type concrete-filled steel tube X-shaped diagonal column can greatly shorten the construction period of columns,reduce labor input,improve build efficiency and reduce construction cost,which has remarkable economic and social benefits.