To easily manufacture a fiber assembly that includes fibers and particulates supported by the fibers, provided is a method for manufacturing a fiber assembly including: a preparation step of preparing a raw material liquid that contains a water-soluble first component, a second component that is capable of forming a hydrogel, and water； and an electrospinning step of forming fibers that contain the first component as a main component and particulates that are supported by a plurality of the fibers and contain the second component from the raw material liquid by an electrospinning method, wherein in a case where the fibers contain the second component, a mass proportion of the second component contained in the particulates is greater than a mass proportion of the second component contained in the fibers.
