The present invention provides an electric walking aid for promoting gait activity and application method thereof. The electric walking aid comprises a support body, a user area, at least one gait sensing module, at least one gait guiding module, and a control system. The gait sensing modules may obtain the gait feature information by a sensing means and then transmit it to the control system. The gait feature information will be converted to instruction information and transmitted to the gait guiding modules, which will provide the user at least one gait prompt based on the contents for guiding the user to practice the gait activity. By the aforementioned contents, the present invention may observe the gait activity status of user in real time and provide the user suitable prompt to promote the gait activity for the user.本發明提供一種步態活動促進之電動步行輔具及其應用方法,該電動步行輔具包含一支撐主體、一使用者區域、至少一步態感測模組、至少一步態引導模組及一控制系統。該些步態感測模組透過一感測手段獲得步態特徵訊息後,傳送至該控制系統,並將步態特徵訊息轉換成指示訊息傳遞至該些步態引導模組,依其內容提供該使用者至少一步態提示,引導該使用者施行步態活動。藉由上述內容,可即時性的觀測到使用者的步態活動狀態,並給予使用者適切的提示以達到促進使用者步態活動之目的。