The present invention provides a system for guiding correction of walking gait and a control method thereof, which can make a user have fun in correction of walking gait so as to enhance a walking correction guiding effect. The control method of the system for guiding correction of walking gait includes the steps of: acquiring reference gait state information on the basis of user information; acquiring current gait state information on the basis of a gait signal received from a gait detecting device; composing a monitoring screen showing a comparison result between the reference gait state information and the current gait state information; and outputting the monitoring screen.