Since the beginning of Radiation Therapy, the Radiation Mold Technology has continued to develop. It continues to find new applications, most notably, so far as mold technology, in the development of delivery a homogenous dose of radiation to an accurately localized target volume in order to produce tumor control with minimal effect on surrounding normal tissues. Mold technology itself has also moved forward. No self-respecting mold room will now wish to be seen without Simple or complex immobilization devices and even automatic Styrofoam cutters are to be found in some departments. The automatic Styrofoam offers real advantages for lead blocks cutting. The manual Styrofoam is now supplanted by fully digital approaches, offering the advantage of greater reliability and the ability to handle accurate foam cutting. Radiation Mold Technology''s role in Radiotherapy is increasing, for example in immobilization of the affected part of the patient, Localization to assess the size and relationship of the tumor volumes to the skin, Protection of vital structures adjacent to the tumor volume and Reproducibility of treatment technique.