The present invention provides a method for calculating a swing trajectory of a golf club using radar sensing data capable of calculating a swing trajectory of a golf club therefrom, a radar sensing device using the same, and a recording medium readable by a computing device recording the calculation method, which calculates the position coordinate information of the golf club through the analysis of the radar signal separately from calculating the motion parameters for the ball through the analysis of the radar signal when the golfer hits the ball with the golf club, and effectively calculate the swing trajectory of the golf club from the calculated position coordinate information of the golf club.