The lug structure of a drum for installing a drum head on a drum shell according to the present invention, includes: a lug base which is installed on the drum shell; a lug which is held by the lug base, and which supports one end of a tightening bolt; and a lug movement restraining portion which is provided between the lug base and the lug, and includes a shaft-shape portion provided on the lug, two planar portions are provided on the lug base, and the two planar portions extends substantially parallel to a shaft line of the shaft-shape portion and is contactable with the shaft-shape portion.