Abstract: A non-puncturing microwave ablation antenna, including an irradiator located at a front end of the antenna and an irradiator cover sleeved on the irradiator, where a front end of the irradiator cover is blunt. Because the front end of the irradiator cover is designed to be blunt, the special non-puncturing appearance of the irradiator cover enables the antenna to freely penetrate inside the lung tissue without puncturing blood vessels and bronchi in the lungs. In addition, blood vessels of tumor existing in the Ground-Glass Opacity (GGO) would not be damaged by the blunt head and bleed, thereby reducing a rate of surgery failure caused by that a lesion cannot be identified because of bleeding inside the lung, and in addition, avoiding a possibility that tumor cells spread through a puncturing passage or bleeding blood vessels.