Abstract:Head and neck squamous cell carcinoma (HNSCC) is the eighth most common cancer worldwide. More than half of HNSCC patients have local recurrence or distant metastasis. With the development of medicine, the approval of immunotherapy drugs has brought new hope for the patients with recurrent/metastatic HNSCC. At present, many studies have confirmed that neoadjuvant immunotherapy represented by programmed death receptor 1(PD-1) checkpoint inhibitor has good efficacy and safety. The combination therapy based on neoadjuvant immunotherapy has also become a research hotspot, including neoadjuvant immunotherapy combined with chemotherapy, radiotherapy, chemoradiotherapy, targeted therapy and neoadjuvant double-immunotherapy. This article reviews the progress of neoadjuvant immunotherapy in HNSCC.