Provided is a liquid ejecting head unit including: a liquid ejecting head which includes a nozzle ejecting a liquid; and a head fixing member to which a plurality of the liquid ejecting heads is positioned and fixed, wherein the head fixing member includes a head holding unit to which the liquid ejecting head is fixed and a body to which the head holding unit is fixed, and wherein the rigidity of the body is lower than that of the head holding unit and the specific weight of the body is smaller than that of the head holding unit.