After chemotherapy plus immunotherapy for squamous lung cancer with good effect, the survival cycle can reach 1~2 years, and if the effect is not good, the life expectancy is only about 1~6 months. Chemotherapy plus immunotherapy for squamous lung cancer is mainly for advanced stage patients, because metastasis of distal organs and lymph nodes has already occurred, so the treatment is mainly to prolong the survival cycle of the patients, and if the patients have high sensitivity and good effect of the treatment, the survival cycle can reach 1~2 years, and some of the patients can even reach 3~5 years. However, if the patient’s sensitivity is not high and the effect is not obvious, the condition will continue to deteriorate, and the survival period is only about 1~6 months, which should be determined by combining the individual’s physical condition and the type of pathology.