PROBLEM TO BE SOLVED: To provide a motion measuring device for small animals capable of accurately measuring the amount of exercise, the exercise intensity, and the running speed. Kind Code: A1 A motion measuring device for a small animal 1 comprising a rotating cage for small animals, a sensor, and a plurality of detected bodies 4 detected by the sensors, wherein the plurality of detected bodies rotate outside the rotating cage. A movement measuring device for small animals, which is provided along a direction, detects a rotational movement of a rotating cage by a sensor and an object to be detected, and the sensor is a magnetic sensor or an optical sensor. [Selection diagram] Figure 2【課題】正確な運動量、運動強度、及び走行速度を測定することのできる小動物用運動測定装置を提供する。【解決手段】小動物用回転かご２、センサ、及びセンサによって検出される複数の被検出体４を備える小動物用運動測定器１であって、前記複数の被検出体は前記回転かごの外側の回転方向に沿って備えられ、センサ及び被検出体によって回転かごの回転運動を検出され、そして前記センサが、磁気センサ又は光センサである小動物用運動測定装置。【選択図】図２
