A stabilizer link and a production method therefor are provided in which a jig for attaching a forming die to a subassembly has a simple structure and which can effectively prevent leakage of a resin to the outside. In insert molding, a ring member is used. An outer peripheral side surface of a ball seat of a subassembly is abutted to an inner peripheral surface of a hole of the ring member. An outer peripheral side radial direction surface of a fixing portion of a dust cover is pressed toward the flange portion of the ball seat by a surface of the ring member, and the fixing portion is held by the surface and the flange portion. An end portion of a die body is abutted to another surface of the ring member.