This paper selects key indicators between party building system inputs and new quality productivity output elements of universities and adopts the correlation method to study the relationship between such elements. From the perspective of mathematical analysis, we can show the interactive relationship between intelligent party building inputs and scientific and technological output elements of universities. The questionnaire method is used to conduct an in-depth investigation and research on the actual situation of postgraduate students’ innovation ability and cultivation. The results of the study show that the elements of funding for the construction of the intelligent party building system show a rising trend from 2020 to 2024. The input of funding for smart party building is proportional to the output, i.e., the greater the input, the more output of new quality productivity in colleges and universities. When investigating the importance of party building in the cultivation of postgraduate students’ innovation abilities, 48.2% of the students believe it is very important. About 58% of the students think that the party building system of their students plays a certain role in cultivating innovation ability.