In a filter holding structure for holding a filter in a component suction head in which a suction nozzle is detachably attached to a tip part of a nozzle shaft, a filter holding space for holding the filter and an opening allowing communication between the filter holding space and the suction nozzle are provided in a tip part of the nozzle shaft. Also, a communication region of the filter holding space connected to the opening is made narrower than an end surface of the filter on the suction nozzle side and is held in the tip part of the nozzle shaft.