Abstract: Based on the need of coal industrial upgrading in the norm of the new economy，this paper expounds new-style coal mine construction that safety，green，intelligent and efficient is mainstream in the future.and the industry gradually has higher requirements on the design quality and the availability of scientific research，combining the present situation of the design，research and engineering construction，proposed the development mode of " Twosome，Trinity "，then discusses the connotation of broad sense and narrow sense about mode and great significance to the transformation development of enterprises, industrial upgrading and national energy reform. According to the example of Twosome by China coal research institute and China coal xi’ an design company，analyzes the auxo-action by the development mode of "Twosome，Trinity" for design quality，research achievement transformation，market expanding and transformation development.