Whether patients with lung adenocarcinoma can take New Crown Vaccine mainly depends on their conditions, if their conditions are stable after evaluation by physicians, they can take the vaccine, but if their conditions are not under effective control, or they are in the stage of acute onset of the disease, they cannot take the vaccine. Lung adenocarcinoma is one of the types of lung cancer and a more common one. The development of the disease will lead to symptoms such as cough, chest pain, shortness of breath, fever and bloody sputum. Although it is said that vaccination against CKV can help people prevent and control CKV, any vaccine has its contraindications and not everyone can be vaccinated. Lung adenocarcinoma patients need to decide whether to be vaccinated with New Crown vaccine according to the actual condition of the individual. If the individual is in the stage of disease progression and receiving anti-tumor treatment, he/she generally cannot be vaccinated; however, he/she can be vaccinated if his/her condition is in the stage of stabilization and his/her physical condition is good. Lung adenocarcinoma patients must undergo a comprehensive assessment by a specialized physician before receiving the New Crown vaccine, and the physician will decide whether or not to receive the vaccine. Tips] In this article, the terms “neocoronavirus pneumonia and novel coronavirus pneumonia” have been renamed to “novel coronavirus infection” on December 26, 2022, as announced by the National Health Commission.