Academic style, as the core of college culture, has a decisive impact on the development of schools. This paper adopts the gray correlation algorithm and introduces the sequence of dynamic discrimination coefficients to improve the flexibility and accuracy of the analysis. Through the improved gray correlation method, 11 factors affecting the construction of academic style in colleges and universities are studied. The results showed that teachers’ professionalism and teaching methods (15.23), individual students (11.34), social environment (9.51) and teachers’ teaching and management level (7.21) were the main influencing factors. This study provides data support for educational administrators and schools to formulate relevant strategies to promote the construction of excellent school spirit.