The objective of this paper is to assess the impact of supply chain linkage on the performance of aluminum profiles enterprises in Northern Vietnam. After qualitative research results, the research team has discovered a new variable in the linkage model which is the Policy linkage. The study performs official quantitative research on 289 aluminum profiles in Northern Vietnam and the results were analyzed on SPSS 22 and Smart PLS 3.0 software. The results indicate that the links in the supply chain include: Supply linkage, customer linkage, policy linkage and internal linkage all contribute significantly to supply chain management efficiency. Moreover, the supply chain management efficiency had a positive effect on business performance of aluminum profiles in the northern region of Vietnam. Finally, the study gives solutions and recommendations to help aluminum bar enterprises shape the northern region of Vietnam to better link in the supply chain and improve business performance.