Therefore, through the correlation analysis of immune, we have reason to think that the ferroptosis-related gene SLC1A5 is closely related to tumor immunity, and the abnormal expression of SLC1A5 may change the tumor immune microenvironment, and the impairment of anti-tumor immunity may also be the reason for the progression and poor prognosis of GC. Here, SLC1A5 is linked to gastric cancer.