According to the data of Hong Kong An Health, the sixth generation cyberknife in Hong Kong can realize the whole breathing tracking with higher accuracy and less side effects. Because the sixth-generation cyberknife has a respiratory tracking system, it can continuously locate the lesion with the patient's respiratory node. According to the special structure of tumor site, it is easy to realize high-precision radiotherapy of tumor by choosing different tracking methods under the guidance of CT images. The total clinical error of accurate treatment is less than 65438±0.0mm, which protects the normal tissues around the tumor focus, so the side effects are small.