A connector comprising: a plurality of terminal fittings, a terminal holding member that holds the plurality of terminal fittings; and an electric wire holding member that is attached to the terminal holding member and is configured to hold a plurality of electric wires, wherein the electric wire holding member includes: a plurality of electric wire holding parts (40, 42) that hold ends of the plurality of electric wires at the same intervals as intervals between the plurality of terminal fittings and are arranged in parallel with space in a longitudinal direction of the plurality of terminal fittings; and an exposure part for exposing exposed portions of core wires of the plurality of electric wires to the outside in order to connecting the exposed portions to the plurality of terminal fittings, characterised in that the terminal holding member is provided with a first retaining portion; wherein the electric wire holding member is provided with a second retaining portion; and wherein the terminal holding member is mutually fixed to the electric wire holding member in a state that each of the exposed portions of the core wires of the plurality of electric wires come into contact with one end of the plurality of terminal fittings in the longitudinal direction by engaging the first retaining portion with the second retaining portion, wherein the exposure part is the space which is arranged between the plurality of electric wire holding parts (40, 42), and the plurality of terminal fittings and the exposed portions can be respectively welded and thus, connection between the plurality of terminal fittings and the plurality of electric wires can be made. a plurality of terminal fittings, a terminal holding member that holds the plurality of terminal fittings; and an electric wire holding member that is attached to the terminal holding member and is configured to hold a plurality of electric wires, wherein the electric wire holding member includes: a plurality of electric wire holding parts (40, 42) that hold ends of the plurality of electric wires at the same intervals as intervals between the plurality of terminal fittings and are arranged in parallel with space in a longitudinal direction of the plurality of terminal fittings; and an exposure part for exposing exposed portions of core wires of the plurality of electric wires to the outside in order to connecting the exposed portions to the plurality of terminal fittings, characterised in that the terminal holding member is provided with a first retaining portion; wherein the electric wire holding member is provided with a second retaining portion; and wherein the terminal holding member is mutually fixed to the electric wire holding member in a state that each of the exposed portions of the core wires of the plurality of electric wires come into contact with one end of the plurality of terminal fittings in the longitudinal direction by engaging the first retaining portion with the second retaining portion, wherein the exposure part is the space which is arranged between the plurality of electric wire holding parts (40, 42), and the plurality of terminal fittings and the exposed portions can be respectively welded and thus, connection between the plurality of terminal fittings and the plurality of electric wires can be made. a plurality of electric wire holding parts (40, 42) that hold ends of the plurality of electric wires at the same intervals as intervals between the plurality of terminal fittings and are arranged in parallel with space in a longitudinal direction of the plurality of terminal fittings; and an exposure part for exposing exposed portions of core wires of the plurality of electric wires to the outside in order to connecting the exposed portions to the plurality of terminal fittings, characterised in that the terminal holding member is provided with a first retaining portion; wherein the electric wire holding member is provided with a second retaining portion; and wherein the terminal holding member is mutually fixed to the electric wire holding member in a state that each of the exposed portions of the core wires of the plurality of electric wires come into contact with one end of the plurality of terminal fittings in the longitudinal direction by engaging the first retaining portion with the second retaining portion, wherein the exposure part is the space which is arranged between the plurality of electric wire holding parts (40, 42), and the plurality of terminal fittings and the exposed portions can be respectively welded and thus, connection between the plurality of terminal fittings and the plurality of electric wires can be made.