Abstract: Against the backdrop of emerging engineering education, higher education institutions commonly face challenges in the graduation design projects of environmental science majors, including a narrow range of topics, limited research depth, and insufficient interdisciplinary integration. To address these issues, this study, guided by the national innovation and entrepreneurship development strategy, has developed an innovative progressive comprehensive experimental system that integrates innovation and entrepreneurship initiatives with graduation design and theses. The experiment centers on the synthesis of magnetic carbon nanocomposites and their application in magnetic solid‐phase extraction (MSPE), coupled with high‐performance liquid chromatography (HPLC) for the detection of parabens (PBs) in environmental water samples. It systematically trains students in essential technical competencies such as material synthesis, morphological characterization, optimization of MSPE conditions, and HPLC analysis, thus achieving a deep integration of scientific research skill development and innovation and entrepreneurship education. By leveraging accumulated outcomes from undergraduate research projects conducted in the early stages of their academic programs, this model seamlessly links prior research achievements with graduation thesis topics, establishing a trinity cultivation framework encompassing “scientific research capacity building, resource integration, and time management”. This approach not only enhances students’ practical and innovative capabilities but also mitigates time conflicts arising from preparation for postgraduate entrance examinations, internships, and thesis completion. Furthermore, it offers a reproducible and scalable practical model for local universities aiming to cultivate interdisciplinary environmental professionals aligned with the demands of emerging engineering education.

Key words: magnetic carbon materials, magnetic solid‐phase microextraction (MSPE), high‐performance liquid chromatography (HPLC), parabens (PBs), practical teaching