The construction of academic style is the central link in implementing the fundamental task of cultivating moral integrity in colleges and universities, and it is also a meaningful way and carrier for realizing the all-embracing, all-encompassing and all-encompassing cultivation of human beings. Based on the four-stage cycle theory of PDCA (Plan-Do-Check-Act), the article constructs a comprehensive evaluation system focusing on the construction of academic style and the evaluation system of the quality of the significant ideological and political cultivation with the goal of value shaping. In the study, the method of variance maximization is adopted to determine the weights of evaluation indexes, and a genetic algorithm is introduced to optimize these weights to solve the optimal linear programming problem of variance maximization. The study establishes a fuzzy comprehensive evaluation and coupled coordination model through this method. Taking University S as an example, the article conducted a comprehensive review of the quality of the academic style construction and the quality of the significant ideological and political education. It used the comprehensive development index to analyze the level of the coupled and coordinated development of the two. The results show that in the construction of academic style, the weight value of students’ learning behavior is 0.2565, while in the evaluation system of the quality of considerable ideological and political education, the weight value of teaching effect is 0.2564. These two fields’ coupling coordination levels increased 1.33 times from 2010 to 2019. This indicates that the higher the level of coupled and coordinated development of college academic style construction and more excellent ideological and political education, the more helpful it is for colleges and universities to realize the goal of cultivating moral character. The study in this paper provides a practical evaluation and optimization framework to promote the comprehensive improvement of the quality of college academic style construction and considerable ideological and political education, and then better achieve the educational goal of establishing morality and educating people.