<p>Provided is a component mounting condition determination method of a component mounter (200) that can improve a throughput of a whole production line. The method determines a mounting condition of the component mounter (200) that mounts components on boards, for use in a production line including the component mounter (200) including transportation lanes aligned parallel to each other. The method includes determining the mounting condition so that a line tact ratio among the transportation lanes approximates a predetermined ratio (S204 to S210).</p>
