To sufficiently prevent developing thick and thin yarn parts by improving the starting of a ring spinning machine.

This method for starting the ring spinning machine comprises at least nearly simultaneously starting a drafting device 12 and a spindle 13, slowly accelerating the drafting device 12 during the starting, making the yarn feed carried out after starting in a prescribed time unit remarkably less than that required at the number of spinning revolutions for obtaining operating yarn rotation obtained by a higher spindle acceleration, making the number of spindle revolutions approach a prescribed standby number of revolutions 37 before the operating number of revolutions is obtained, maintaining the standby number of revolutions 37 until the yarn feed is increased to an extent so as to obtain the operating yarn rotation at the standby number of revolutions 37 with the drafting device 12 for gradually strongly accelerating the yarn feed and then accelerating the spindle 13 and the drafting device 12 together to the operating number of revolutions while maintaining the resultant ratio of the spindle number of revolutions to the yarn feed to the drafting device 12.