A sensor signal collecting unit worn on the user's head side, and a signal transmission from the sensor signal collecting unit, which includes a three-axis acceleration sensor including up / down, left / right, and front / rear and a position measurement sensor for measuring the position of the user The walking or running motion state value including the acceleration, speed, and position of the user mass center is derived using the three-axis direction acceleration and position signal, and the walking or running motion state value is analyzed to determine the walking or running posture. Disclosed are a motion recognition device including a motion posture deriving unit and a method thereof. [Selection] Figure 2上下、左右、前後を含む3軸方向加速度センサおよびユーザの位置を測定する位置測定センサを含んでなり、ユーザの頭側に着用されるセンサ信号収集部、および前記センサ信号収集部から信号の伝達を受け、3軸方向加速度および位置信号を用いてユーザ質量中心の加速度、速度、位置を含む歩行または走行運動状態値を導出し、前記歩行または走行運動状態値を分析して歩行または走行姿勢を導出する運動姿勢導出部を含む運動認識装置およびその方法が開示される。【選択図】図2