After several years' practice and popularization, most people understand that BIM is only a tool but not the goal.While it's hard to adopt BIM successfully by single person, it needs top down strategic planning.The question is in which way the engineering firms could implement BIM successfully? This paper provides an answer called "Project type BIM group" after analyzing couple existing popular way such as "BIM type BIM group", "Junior employee leading BIM" and "Everyone BIM".