PROBLEM TO BE SOLVED: To provide a biological information acquisition device and a measurement jig capable of performing a stable measurement.SOLUTION: A biological information acquisition device 1 comprises: a body 3 to place a finger 5 thereon a pressing part 21 for pressing the finger 5 to the body 3 and a first connector 13 and a second connector 14 for connecting the body 3 with the pressing part 21. The first connector 13 and the second connector 14 are connected with the body 3 rotatably about a first shaft 12 and connected with the pressing part 21 rotatably about a second shaft 15.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】安定した測定が行える生体情報取得装置及び測定治具を提供する。【解決手段】生体情報取得装置1は指5が設置される本体部3と、指5を本体部3に押圧する押圧部21と、本体部3と押圧部21とを接続する第1接続部13及び第2接続部14と、を備え、第1接続部13及び第2接続部14は本体部3と第1軸12にて回転可能に接続され、押圧部21と第2軸15にて回転可能に接続されている。【選択図】図1