 Outline:This is a prospective, matched, controlled, open, multi-center clinical study. Select the early-stage peripheral NSCLC 630 patients diameter2cm, according to age and lesion type GGO component ratio two matching factor of 1: 2 assigned to sub-lobectomy group and lobectomy group.Patients are followed up every 3 months for the first year and then every 6 months for the other 4 years. 