Abdominal aortic aneurysm is a cardiovascular disease associated with chronic inflammation that poses a serious threat to the population. This study used the emerging Olink proteomics technology with the aim of identifying markers associated with inflammation in the serum of patients with abdominal aortic aneurysm. Serum samples were collected from 14 patients with abdominal aortic aneurysms on the day of admission to the hospital and serum samples from 14 healthy individuals were used as controls. The expression levels of 92 inflammation-related proteins were compared between abdominal aortic aneurysm patients (n=8) and controls (n=8) using the Olink Proximity Extension Assay inflammation plate. Differential proteins were analyzed by enrichment analysis and ROC curve analysis to determine their role and value in the diagnosis and study of abdominal aortic aneurysms. Subsequently, five proteins were screened for ELISA validation by correlation analysis between differential proteins and the maximum diameter of abdominal aortic aneurysms in combination with expression differences and diagnostic value. The results of the study showed that 26 proteins were upregulated in expression in the abdominal aortic aneurysm group compared with the control group, and the selected FGF-19, CCL11, TNFRSF9, FGF-21, and IL-12B were validated by ELISA. The results showed that these five proteins were up-regulated in the serum of abdominal aortic aneurysm patients(P<0.05), which may be novel diagnostic markers for abdominal aortic aneurysm disease.