Bushing plate for manufacturing glass fiber and manufacturing method of glass fiber

The present invention relates to a bushing plate for glass fiber production provided with a plurality of nozzles made of platinum or the like for discharging molten glass, and a base plate made of platinum or the like. In the present invention, a coating layer is preferentially formed on the outer peripheral surface of the tip portion of the nozzle on the glass discharge side, and the width of the coating layer is 5% to 95% inclusive with respect to the entire length of the nozzle. The base plate includes, in at least a portion thereof, a non-coated region without the coating layer. A region of the nozzle and the base plate without the coating layer functions as a sacrificial metal for protecting the tip of the nozzle on which the coating layer is formed. In the present invention, in consideration of the action of the sacrificial metal, the coating layer at the tip of the nozzle preferably has a coating rate P, calculated using a prescribed formula, of 5% to 350% inclusive. The purpose of the present inventio