The Head and neck squamous cell carcinoma(HNSCC) is a group of heterogeneous diseases.Patients with HNSCC demonstrate poor prognosis and survival time with standard therapy,especially in patients with advanced HNSCC.Recurrence and metastasis have not yet been effectively controlled.The immune profile in HNSCC,whether caused by carcinogen exposure or human papillomavirus(HPV),showed significantly immunosuppression.With the understanding of the complex interaction between tumor and immune system and immune escape mechanism of HNSCC,new immunotherapies have been generating.This article will summarize the immunological mechanism and immune therapy of HNSCC currently.