The development of an unidentified mass (nodule, space) in the lungs is usually followed by 3 types of response: regular observation, CT once every 2 months, but often the best time to treat the lesion is lost when it is found to be larger; diagnostic treatment: the lesion is assumed to be tuberculosis or inflammation and anti-tuberculosis or anti-infection treatment is given, with a follow-up in 2-3 months. Hair side effects can occur and delay proper treatment. Positive response: perform minimally invasive thoracoscopic surgery to remove the lesion for biopsy, if it is benign, end the surgery and come back for symptomatic treatment; if it is malignant, perform radical thoracoscopic surgery for lung cancer immediately. Diagnosis and treatment can be completed at one time. Achieve precise, efficient and minimally invasive effect.