Disclosed are a system and method for recognizing an obstacle at the time of parking. The inventive system includes: at least one lateral side ultrasonic sensor for sensing lateral distance data between a users vehicle and an obstacle positioned adjacent to a lateral side of the users vehicle a first course calculation unit for calculating lateral position data and a first course on the basis of the lateral distance data at least one rear side ultrasonic sensor for sensing rear distance data indicating a distance between the users vehicle and an obstacle positioned behind the rear side of the users vehicle a second course calculation unit for extracting rear position data for the obstacle positioned behind the users vehicle on the basis of the rear distance data, and for extracting and calculating a final target parking position and a final course on the basis of the rear position data and a control unit which receives information for the first course from the first course calculation unit so as to control the steering wheel of the users vehicle, thereby moving the users vehicle forward or backward along the first course, and receives information for the final target parking position and the final course from the second course calculation unit so as to control the steering wheel, thereby moving the users vehicle is moved along the final course and automatically parked at the final target parking position.
