PROBLEM TO BE SOLVED: To provide an operation force detection device and a walking assist device with simple structures in which accuracy deterioration can be suppressed.SOLUTION: An operation force detection device 300 used for a walking assist device includes a sliding pipe 560 that can slide in an axial direction in response to gripping, a fixed pipe 510 disposed inside the sliding pipe 560, pressure-sensitive resistance sensors 550 and 551 fixed to the fixed pipe 510 so as to detect operation force acting in the axial direction of the sliding pipe 560, and a pressing member 540 fixed to the sliding pipe 560 which is disposed facing the pressure-sensitive resistance sensors 550 and 551 so as to transmit force acting in the axial direction of the sliding pipe 560 to the pressure-sensitive resistance sensors 550 and 551.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】構造が簡単で精度の低下が抑制される操作力検出装置および歩行補助装置を提供する。【解決手段】歩行補助装置に用いられる操作力検出装置300は、把持に応じて軸方向に摺動可能な摺動パイプ560と、摺動パイプ560の内部に配置された固定パイプ510と、摺動パイプ560の軸方向に作用する操作力を検出するように固定パイプ510に対して固定された感圧抵抗センサ550,551と、摺動パイプ560に固定され、摺動パイプ560の軸方向に作用する力を感圧抵抗センサ550,551に伝達するように感圧抵抗センサ550,551に対向して配置された押圧部材540とを備える。【選択図】図3