The present invention provides an electric wire joining structure (80), an electric wire joining method, and a terminal (1), each of which allows a reduction in burden on an operator. The present invention includes: one or more electric wires (10); a terminal (1) including one or more insertion holes (7) for the respective one or more electric wires (10), the one or more electric wires (10) being inserted into the respective insertion holes (7); and a joining part (20) formed by thermal spraying, the joining part (20) joining the one or more electric wires (10) to the terminal (1) on a side on which the one or more electric wires (10) have passed through the respective one or more insertion holes (7).