Under the great background of industrial promotion and upgrading, digital change and transformation, and rising ability requirement in job market, this research studies how the combination of industry and education promotes the employment competitive power of vocational college graduated students. Based on the opinions from graduates of the 2024-2025 batches, this research constructs a three-source data framework that integrates student examination papers, company mentor evaluations, and campus employment outcome records, hence obtaining 836 valid observation samples. Multiple rounds of return regression, Bootstrap middle effect testing, and extra structural equation modeling are utilized to test the baseline effect, mechanism effect, and heterogeneity among different groups. The outcome manifests that the combination of industry and education is able to significantly promote the competition ability of obtaining employment. After we have controlled for individual, family, school, and regional factors, the coefficient of the core explaining variable drops from 0.412 to 0.284, hence it still remains significant on statistics. Digital employment ability and practice quality are regarded as the main transfer paths, hence professional identity still cannot provide stable explanation force in the short term. The positive influence can be more obviously discovered among students who study manufacturing and information connected majors, who are in eastern areas, and who study in schools that have deeper school-enterprise cooperation.Extra robust experiments which are based on other explained result variables and divided group calculations therefore confirm the steadiness of the obtained conclusions. On this foundation, this research puts forward four feasible roads, that is curriculum joint development, high quality practice posts, digital capability implantation, and tighter cooperation between double-qualification teachers and enterprise tutors. These result offer experiment support and realistic meanings for promoting ability nurturing, enhancing college-enterprise collaboration, and increasing the job competition ability of vocational school graduates.