Since the expression level of COL11A1 is closely related to the progression and metastasis of breast cancer, in order to further explore the predictive value of COL11A1 in the prognosis of breast cancer, we compared the overall survival (OS) of breast cancer patients with high expression of COL11A1 gene in the TCGA database and the Kaplan Meier Potter database. Here, COL11A1 is linked to breast cancer.