The price of proton radiotherapy ranges from $200,000 to $300,000. The reasons affecting the price of proton radiotherapy mainly include the size of the tumor, the number of tumors and the radiotherapy institution. 1. Tumor size: Proton radiotherapy mainly radiates high-energy proton beams through special instruments to irradiate the tumor site directionally, so as to achieve the purpose of killing the tumor. The treatment cost is affected by the tumor site, tumor size, etc. Usually, the larger the tumor size is, the higher the number of treatments is and the higher the treatment price is. 2. Number of tumors: If the number of tumors is large, proton radiotherapy requires multiple treatments for multiple parts of the tumor, and the treatment cost is relatively high. 3. Radiotherapy institutions: different treatment institutions adopt different proton radiotherapy equipment, and their precision and accuracy are different. Generally speaking, the proton radiotherapy equipment of high-grade radiotherapy institutions is more advanced and the charges are higher than those of low-grade institutions. Before proton radiotherapy, you should go to a professional institution to complete all kinds of preoperative examinations and carry out the treatment under the guidance of a physician, so that the radiotherapy process can be carried out smoothly.