Abstract: There is provided an optical-fiber resin coating device which can uniformly coat resin on an optical fiber at a high fiber-pulling velocity while preventing thickness deviation, outer-diameter variation and breaking of the optical fiber. The optical-fiber resin coating device includes a coating die (2N) with a coating die hole (6N) having at least a taper hole portion (6Na) and a land hole portion (6Nb), a nipple (1) having a nipple hole (5), and at least one intermediate die (2A) disposed between the coating die (2N) and the nipple (1) and having an intermediate die hole (6A). The inner diameter of the intermediate die hole (6A) of the intermediate die (2A) is smaller than the inner diameter of the inlet of the taper hole portion (6Na) of the coating die (2N) and equal to 1.