Any lung cancer in its development to a stage, radiotherapy can be conducted, but because of Radiotherapy is a local treatment, so that surgery, chemotherapy and radiotherapy treatment on the basis of the patient should be the needs of the specific situation, it is time to radiotherapy played the leading role in the clear while the play is singing when it must be working to green leaves.

First, small cell lung cancer because of early cancer metastasis, and sensitive to chemotherapy, radiotherapy is not a preferred option, it should be the first place chemotherapy until three to four cycle, the mass reduced to consider radiotherapy in order to obtain the best results.

Second, the early non-small cell lung cancer (squamous cell carcinoma and adenocarcinoma) patients, although still in surgery as a preferred option, but for those with heart or because their lung disease based on the unbearable burden of the surgery patients, confirmed by clinical research, precision radiation therapy available and similar to the results of surgical treatment. In the meantime, those local advanced cancer but no distant metastasis, the tumor in the direction of the radical radical radiotherapy can achieve more satisfactory goal.

Third, for those unable to surgery, and in part already advanced metastatic brain or bone metastases patients choose palliative radiotherapy can be effective in improving the patient's quality of life and relieve their suffering.

Fourthly, for any one but not diagnosed with lung cancer surgery patients, should, where possible, as soon as possible to radiotherapy. Radiotherapy alone or combined with surgery and chemotherapy, can be operated programs, but patients must be based on the specific circumstances, we need to note that after surgery or chemotherapy must be given appropriate intervals, so that patients must restore the body to be carried out by radiotherapy to promote overall the treatment process.

Currently, in order to improve the accuracy of cancer treatment and effective protection of normal tissues, thereby improving the survival rate and quality of life of patients, radiation therapy has been successful in the conventional radiotherapy technique for the development of three-dimensional conformal and gamma stereotactic radiotherapy, as represented by precision radiotherapy techniques.