The present invention addresses the problem of providing a capsule that contains a functional substance, and has good shape stability and feeling when used. The method for manufacturing the capsule includes: a step of mixing gelatin and the functional substance; a step of adding a carbodiimide crosslinking agent, and crosslinking the gelatin using the carbodiimide crosslinking agent; a step of solidifying the crosslinked gelatin; and a step of pulverizing the solidified gelatin.