PROBLEM TO BE SOLVED: To inhibit leakage of a matching liquid in a device for obtaining information on the interior of a specimen by measuring an acoustic wave transmitted from the specimen.SOLUTION: An acoustic wave measurement device includes a holding member for holding a specimen which is a part of a subject a probe unit disposed opposite to the specimen through the holding member to receive an acoustic wave from the specimen in each position of movement along the holding member and supply means for supplying a matching liquid between the holding member and the probe unit. The holding member has a projection part projected in the direction of disposing the probe unit on the subject side.COPYRIGHT: (C)2014,JPO&INPIT【課題】被検体から伝播する音響波を測定して被検体内部の情報を得る装置において、マッチング液の漏れを抑制する。【解決手段】被検者の一部である被検体を保持する保持部材と、保持部材を介して被検体と対向して配置され、保持部材に沿って移動した各位置で被検体からの音響波を受信するプローブユニットと、保持部材とプローブユニットの間にマッチング液を供給する供給手段を有し、保持部材は、被検者の側において、プローブユニットが配置された方向に突出する突起部を有する音響波測定装置を用いる。【選択図】図3