Radioactive source position indicator

The utility model relates to a radioactive source position indicator, comprising the components as following: a casing, wherein the casing is provided with a lower end cap, the outer side of the lower end cap is provided with an indicating lamp and two peripheral interfaces, and the inner side of the lower end cap is provided with a circular magnet; and a circuit board arranged in the casing, wherein the circuit board is provided with a positioning unit, a radiation detection unit, a communication transmission unit, a control unit, a power supply unit and a DI detection unit. The utility model provides the radioactive source position indicator based on the internet of things technology, radioactive source bodies including mobile sources and fixed sources can be positioned, tracked and alarmed employing a GPS-CPS dual positioning function, the positioning requirements on a plurality of indoor and outdoor occasions can be satisfied, and simultaneously, the dosage monitor on the radioactive source can be achieve