A fishing line guide comprising: a plate-shaped frame member formed of fiber-reinforced plastic, the frame member having an engagement hole and a guide hole through which a fishing line passes; and a hollow supporting member engaged with the engagement hole, the supporting member having a through-hole through which a fishing rod passes, wherein the supporting member includes: a first abutting surface extending in a direction crossing an extension direction of the through-hole, the first abutting surface being formed so as to abut against a front surface of the frame member; a second abutting surface extending in the direction crossing the extension direction, the second abutting surface abutting against a back surface of the frame member; a rear side part extending backward from the engagement hole of the frame member; an engagement part inserted into the engagement hole to fill the engagement hole; and a front side part (34, 36) extending forward from the engagement hole characterised in that the hollow supporting member is formed of a resin, that the first abutting surface is formed of a welded resin, and that the front side part (34, 36) contains a welded resin to have an outer surface rougher than an outer surface of the rear side part. a plate-shaped frame member formed of fiber-reinforced plastic, the frame member having an engagement hole and a guide hole through which a fishing line passes; and a hollow supporting member engaged with the engagement hole, the supporting member having a through-hole through which a fishing rod passes, wherein the supporting member includes: a first abutting surface extending in a direction crossing an extension direction of the through-hole, the first abutting surface being formed so as to abut against a front surface of the frame member; a second abutting surface extending in the direction crossing the extension direction, the second abutting surface abutting against a back surface of the frame member; a rear side part extending backward from the engagement hole of the frame member; an engagement part inserted into the engagement hole to fill the engagement hole; and a front side part (34, 36) extending forward from the engagement hole characterised in that the hollow supporting member is formed of a resin, that the first abutting surface is formed of a welded resin, and that the front side part (34, 36) contains a welded resin to have an outer surface rougher than an outer surface of the rear side part. a first abutting surface extending in a direction crossing an extension direction of the through-hole, the first abutting surface being formed so as to abut against a front surface of the frame member; a second abutting surface extending in the direction crossing the extension direction, the second abutting surface abutting against a back surface of the frame member; a rear side part extending backward from the engagement hole of the frame member; an engagement part inserted into the engagement hole to fill the engagement hole; and a front side part (34, 36) extending forward from the engagement hole characterised in that the hollow supporting member is formed of a resin, that the first abutting surface is formed of a welded resin, and that the front side part (34, 36) contains a welded resin to have an outer surface rougher than an outer surface of the rear side part.