To provide an inspection apparatus of endothelia function of an arterial blood vessel, having high measurement accuracy and capable of imposing a sufficiently high shear stress to arterial endothelium in a short time.SOLUTION: An arterial vascular endothelium function inspection apparatus imposes shear stress to an endothelium of an arterial vessel 29a by a blood flow for each of a plurality of pulse waves that are generated in such a state that compression pressure PC by a tourniquet 40 is lower than the systolic blood pressure value Pof a living body and that are pressure vibrations generated in the compression pressure PC in synchronization with a heartbeat of the living body, and then, causes compression pressure control means 88 to release the compression pressure. This configuration can improve the measurement accuracy of dilation-related values of the arterial blood vessel, and highly accurately evaluate the endothelial function of the arterial blood vessel 29a.SELECTED DRAWING: Figure 2【課題】十分な大きさのずり応力を短時間で動脈内皮に与えることができる、測定精度高い動脈血管の内皮機能測定装置を提供する。【解決手段】圧迫帯40による圧迫圧PCが生体の最高血圧値PSYSよりも低い状態で発生する、生体の心拍に同期して圧迫圧PCに発生する圧力振動である複数の脈波毎の血流によって動脈血管29aの内皮にずり応力を付与した後、圧迫圧制御手段88に圧迫圧力を解放させる。これにより、動脈血管の拡張関連値の測定精度が向上するとともに、動脈血管29aの内皮機能を精度よく評価することができる。【選択図】図2