Abstract:With a view to promote knowledge sharing within construction enterprise, a method of selecting knowledge professional was put forward. Firstly, from three dimensions, that is, knowledge stock, knowledge value and knowledge sharing, an index system of selecting experts including three first grade indexes and nine secondary indexes has been developed. By means of interview with the knowledge managers of the construction enterprise, some quantitative methods concerning to the indexes have been given out. And then, the indicator weight was ascertained based on the structure entropy weight method. The method was used into a large construction enterprise for selecting the knowledge professional, the applicability of this method was verified.