Abstract: Intrabeam, a newly developed intraoperative radiotherapy in recent years, has many advantages such as accurate positioning, small size, easy to move and requiring a lower of protection. It is widely used in the treatment of breast cancer, colorectal cancer, lung cancer, bone metastases tumors and other malignancies. Intrabeam as a new way of intraoperative radiotherapy, is expected to provide more options for the treatment of a variety of neoplasms.

Key words: Radiotherapy, Neoplasms, Intrabeam