Abstract: As BIM technology continues to be explored and applied to engineering projects, how to choose the correct orientation and type of BIM in project strategy has become the first issue. This article analyzes and extracts the influencing factors of BIM strategy firstly based on the judgment method of fuzzy mathematics. Taking the BIM application project of the Hangzhou-Haining intercity railway project as an example, it selects experts in various fields to score BIM strategy, comprehensively evaluate the pros and cons of BIM application and the degree of crisis, and then calculates the total strengths, weaknesses, opportunitiesand total threat levels based on the results of the evaluation. Then based on SWOT decision-making method, a strategic evaluation coordinate system has constructed, a BIM application strategy envelope diagram has drawn. And finally a strategic position analysis of BIM application has formed through the selection of strategic types and calculation of the degree of strategy, providing a science for the strategic decision-making of BIM application of engineering projects reference.