The invention discloses an electric anti-falling climbing assistant device which comprises a housing, a winding drum, a lifting rope, a driving motor and an anti-falling protection brake structure which are mounted on the housing; a cavity is formed in the housing; a penetration hole communicated with the cavity is formed in the housing; the winding drum is rotatably mounted in the cavity; the lifting rope is mounted on the winding drum in a winding manner; the hooking end of the lifting rope penetrates out of the penetration hole and performs lifting motion along with the rotation of the winding drum; the driving motor is fixedly mounted on the housing; the rotation output part of the driving motor is in drive connection with the winding drum. The electric anti-falling climbing assistant device is characterized in that the anti-falling protection brake structure comprises a mechanical brake structure and an electromagnetic brake structure which are connected with the winding drum and used for braking the winding drum. The electric anti-falling climbing assistant device provided by the invention has the advantage that a safer and more reliable anti-falling protection function is achieved.