A connector (10) comprises a primary resin-molded member (20) integrally covering both a terminal (18) and a covering material (14). A first sealing material (24) is disposed at the first joining portion (28) between the primary resin-molded member (20) and the covering material (14) so as to seal the first joining portion (28). The first sealing material (24) is integrally covered together with the primary resin-molded member (20) by a secondary resin-molded member (22). The peeling of the first sealing material (24) from the first joining portion (28) is suppressed by the secondary resin-molded member (22), whereby the durability of the waterproof structure can be improved.