Abstract: A swing analysis method of the present invention includes steps of: preparing a radio type acceleration measuring device 4 capable of measuring respective accelerations in three axis directions; mounting the acceleration measuring device 4 to a golf player's body t1; receiving measured data from the acceleration measuring device 4 during a swing through radio communication; and analyzing a golf swing based on the acceleration data. Preferably, the acceleration measuring device is attached to each of two or more portions of the tester t1. Preferably, an attached position of the acceleration measuring device is any part selected from the group consisting of a head, a neck, a shoulder, a back, a waist and a wrist. Preferably, a weight of the acceleration measuring device is equal to or more than 10 g.