Particle implantation therapy belongs to a kind of precise internal radiotherapy measures, which has good effect on local control of tumor and less damage to normal tissues. Particle implantation therapy belongs to local treatment means, is a kind of precise internal radiotherapy means, the treatment principle is to implant the particles made of radioactive elements into the internal mass, and continuously emit rays in the body, the duration can be up to one year, it has a good effect of local control, and the radiation range is about 2cm, and it has less damage to the surrounding normal tissues. At present, it is applicable to the local treatment of lung cancer, breast cancer, primary liver cancer and other malignant tumors. Radioactive particle implantation therapy has no surgical incision and suture, and its effect is more lasting compared with external irradiation. Patients are advised to communicate with their doctors to clarify whether this means is applicable to their own diseases and carry out the treatment under the guidance of their doctors.