To provide a readily and inexpensively manufactured radioactive carrier . A radioactive material carrier 2 may be one which carries a radioactive substance that emits radiation of a low dose , a substrate 7 , the coating material is coated with a powder of the radioactive material to the substrate 7 I have and the coating layer 10 that has been wearing . The coating material may be one containing a powder of a negative ion generating material to the other powder of radioactive material . Substrate 7 is a sheet material having flexibility , it is also possible to suspend the sheet material on the outer peripheral side of the support frame of the residence spaces . [ Selection Figure ] Figure 3【課題】容易且つ安価に製造できる放射性物質担持体を提供する。【解決手段】放射性物質担持体2は、低線量の放射線を放出する放射性物質を担持するものであって、基材7と、この基材7に放射性物質の粉体を含む塗着材が塗着された塗着層10とを有する。塗着材は放射性物質の粉体の他にマイナスイオン発生物質の粉体を含むものでもよい。基材7は可撓性を有するシート材とし、そのシート材を居留空間の外周側の支持枠に吊り下げるようにしてもよい。【選択図】図3