Mucinous lung cancer does not necessarily require surgery, whether mucinous lung cancer patients should undergo surgery should be judged according to the stage of lung cancer, early stage lung cancer usually requires surgery with good prognosis, while middle and late stage lung cancer needs to decide whether to undergo surgery or not according to the analysis of pros and cons. Mucinous lung cancer is a special type of adenocarcinoma, which is generally due to inflammatory lesions of tumor caused by local bacterial infection, with high degree of malignancy. Clinical symptoms are mainly chest pain and chest tightness caused by the formation of pleural effusion. Treatment mainly includes surgery, targeted drug therapy and so on. 1. Surgery: For early mucinous lung cancer, the cancer has not yet metastasized to distant places, at this time, surgery can get more benefits. Generally, wedge resection of lung or lobectomy + lymph node dissection can be chosen, and whether the margins are negative or not can be observed after surgery. Generally, there are fewer postoperative complications and higher survival rate after surgery. 2. Targeted drug therapy: some patients with mucinous lung cancer have positive EGFR test results, and these patients can be treated with targeted drug therapy, which is aimed at the target of gene variant, with good effect and little side effect. Whether mucinous lung cancer patients undergo surgery or not should be analyzed by comprehensively evaluating the patients’ underlying disease, metastasis, age and other factors to determine the benefit of surgery. Patients should consult the competent doctor and wait for the results of various examinations to make a comprehensive decision on whether or not to undergo surgery, so as to avoid delaying the condition.