To provide a walking state measurement device including a measurement unit for acquiring walking information that is to be taken as an insole of a shoe and a walking state measurement device enabling confirmation of a walking state of an older person.SOLUTION: A walking state measurement device includes a measurement unit for measuring a walking state of a wearer, the measurement unit being to be taken as an insole of a shoe. Thereby, the measurement unit can be transferred even when the shoe has been worn away, which enables reduction in an economic load. The walking state measurement device also acquires vertical acceleration data on the wearer's foot and elevation/depression angle data on toes of the foot. The data is effective especially for evaluating a shuffling state of an older person or the like and is available for speculation or diagnosis with respect to a degree of reduction of the wearer's lower limb function (muscle power or the like).SELECTED DRAWING: Figure 2【課題】歩行情報の取得を行う計測部を靴の中敷きとした歩行状態測定装置を提供する。また、高齢者の歩行状態を確認可能な歩行状態測定装置を提供する。【解決手段】この歩行状態測定装置は、着用者の歩行状態を測定する計測部を靴の中敷とする。このため、靴が摩耗した場合でも計測部を移し替えることができ、経済的負担を軽減することができる。また、この歩行状態測定装置は、着用者の足の上下方向の加速度データと足のつま先の仰俯角データとを取得する。これらのデータは特に高齢者等の摺り足状態の評価に有効であり、着用者の下肢機能(筋力等)の低下の度合の推測や診断に用いることができる。【選択図】図2