A terminal-provided wire (1) includes an insulated wire (10) with an insulation coating (12) made of polyolefin-based resin, an adhesive layer (30) formed on a surface of the insulation coating (12) over the entire circumference and a waterproof resin portion (40) formed by insert molding. The waterproof resin portion (40) covers an area from a part of the insulated wire (10) where the adhesive layer (30) is formed to a connected part (21) of a metal terminal (20) to a core (11). The adhesive layer 30) is made of modified olefin-based resin, which is olefin-based resin modified with a polar group. The waterproof resin portion (40) is made of aromatic nylon.