Generally speaking, the survival time of lung squamous cancer for a 70-year-old man can be three to five years, but there may be a big difference according to the individual’s physical condition. Survival time of 70-year-old man with squamous lung cancer depends on the malignant degree of lung cancer, stage of lung cancer, lymph node metastasis, treatment and individual physique. If squamous lung cancer is detected early, the malignancy degree is low, the stage of lung cancer is in the early stage, there is no lymph node metastasis, and regular treatment is given in time, the prognosis will be better. In any case, after discovering squamous lung cancer, one should find a professional doctor to conduct relevant assessment and determine a comprehensive treatment plan, so as to ensure the quality and duration of survival as much as possible.