Stereotactic body radiotherapy, a hypofractionated radiation therapy method with fewer fractions and a large single radiation dose, is the preferred method for treating patients with early-stage non-small cell lung cancer who are clinically unsuitable for or refuse surgery. Accuracy and repeatability requirements of the target position are, therefore, necessary. In view of this, adjuvant treatments such as image-guided and respiratory motion management technology and immobilization devices are used clinically to reduce the impact of respiratory motion. This paper summarizes the research status of these approaches and proposes future directions based on the problems existing in each technology.