To provide a lead wire for a speaker which is hardly generated skipping phenomenon and gives no ill effects on sound quality by using a plastic flat monofilament fiber as a core material and stranding a copper fine wire or a copper foil fiber wire around its outer circumference.

A lead wire 35 for a speaker is formed by using a polyether ketone type plastic flat monofilament fiber 37 having appropriate heat resistance and rigidity as a core material and stranding a copper fine wire (containing copper allay) or a copper foil fiber wire 39 around its outer circumference. The whole body is formed flat so that it has small rigidity in the thickness direction, easy to be bent, and has superior flexibility, however, it has appropriate rigidity in the width direction and is hard to be bent. The skipping phenomenon is hardly generated on the lead wire swung by being resonated with the vibration. The use of the lead wire faced its thickness direction to the vibrating direction gives no ill effects on sound quality of the speaker.