重离子放疗，特别是碳离子放疗，由于其良好的放射物理学特性和生物学效应在肿瘤放疗中逐渐受到重视。近年来研究发现，重离子放疗在不同实体瘤中均能取得较好的疗效。在不远的将来，如果重离子放疗能克服现有的技术困难则有望成为下一代放疗的主流。“,”Heavy ion radiotherapy, especially carbon ion radiotherapy, has been paid more attention in cancer radiotherapy because of its good radiophysical properties and biological effects. Recent studies show that the heavy ion is effective in treating solid tumors. In the near future, heavy ion radiotherapy is promising to become the mainstream of the next generation of radiotherapy if it overcomes the existing technical difficulties.