A medical magnetic pellet is provided. The magnetic pellet includes a porous matrix and magnetic powder dispersed in the matrix. Moreover, an active substance also can be added. The active substance is also dispersed in the matrix. The porous matrix of the magnetic pellet can carry active substances or absorb target substances.在此提供一種醫療用之磁導微球,其包括多孔實體與散佈於實體中之磁粉。另外,還可添加活性物質,讓其也散佈於實體中。上述之多孔實體讓磁導微球可乘載活性物質或吸附特定標的物。100‧‧‧磁導微球110‧‧‧第一實體112‧‧‧磁粉114‧‧‧第一活性物質