To stabilize a weaving process to improve the quality of the woven fabric.

This method for easing the loom which is equipped with a plurality of tension rolls and carries out a weaving work according to an opening pattern for maintaining an prescribed heddle in an opened state over a plurality of pitches during one opening repeat, comprising setting so that each warp group allowed to pass through each of a plurality of looms is set to belong to either of two or more groups in the opened pattern, winding each warp group on a tension roller assigned for each group, and carrying out an easing movement on each tension roll in response to the presence or absence of the opening movement of a warp group.