PROBLEM TO BE SOLVED: To provide a membrane member capable of improving strength and a manufacturing method thereof.SOLUTION: A membrane member according to an embodiment includes a fiber portion made of a plurality of fibers and a first resin portion filled in a gap between the fibers.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】強度を向上できる膜部材およびその製造方法を提供する。【解決手段】実施形態に係る膜部材は、複数の繊維からなる繊維部と、前記繊維同士の間隙に充填された第1樹脂部と、を備える。【選択図】図1