Sample radiation detection device

The utility model relates to a sample radiation detection device, comprising: a radiation detection part (1) comprising a sodium iodide crystal (11) for converting particle energy of radiated rays into light energy and a silicon photomultiplier (12) for converting light energy into an electric signal; the sample bearing part (2) is arranged below the radiation detection part (1), the sample bearing part (2) is configured to rotate around a vertical rotating axis, the sample bearing part (2) comprises a plurality of sample placement parts (21) arranged in the circumferential direction of the rotating axis, and the sample placement parts (21) are configured to rotate to the detection position of the radiation detection part (1) along with the sample bearing part (2); the radiation detection component (1) adopts the combination of a silicon photomultiplier (12) and a sodium iodide crystal (11), so that the detection precision is effectively improved, and the radiation detection on a trace sample can be realized.