This study demonstrates that vinburnine, an approved cerebrovascular drug, synergizes with radiotherapy in nasopharyngeal carcinoma (NPC) by modulating EDAR‐NFκB signaling through directly binding to EDAR, leading to triggering apoptosis/pyroptosis, and amplifying CCL5/CX3CL1‐driven T‐cell cytotoxicity. Here, CX3CL1 is linked to nasopharyngeal carcinoma.