Neighborhood system is a system with more compatibility and application.Its granulation generally adopts the method of similarity and the threshold.The main shortcomings of the method are the subjectivity of threshold and the complex of calculation results.In this paper, a new approach that adopts fuzzy clustering and statistics is supposed.The approach can not only keep some uncertainty measurement properties of Pawlak rough set system，but also is more objective in the threshold.The example shows the effectiveness of the approach.