Stereotactic Body Radiotherapy (SBRT) is characterized by the use of enhanced biological equivalent doses to deliver very high doses of radiation within a relatively short overall treatment time, thereby increasing the likelihood of local tumor control. SBRT is primarily used for small tumors located in the body and is suitable for treating lung cancer, liver cancer, prostate cancer, and bone metastases. SBRT requires extremely high accuracy in positioning, utilizing technologies such as three-dimensional or four-dimensional imaging navigation and respiratory control to enhance the precision of the treatment location, achieving optimal therapeutic effects.