A wire-inserted composite strip was cast using a downward melt-drag twin roll caster. The downward melt-drag twin roll caster was easily modified to a twin roll caster for the composite strip by simply attaching a coil of wire. Wire of either 0.3-mm and 0.6-mm diameter could be inserted continuously both inside and at the surface of the strip. The insertion of wire did not affect the castability of the strip. At a suitable roll speed, no void formed between the wire and the strip. The wire-inserted strip could be rolled without defect between the wire and the strip., Draft of the wire diameter was almost same as that of the strip after rolling. The wire and the strip reacted at the some condition. However, the reacting layer was very thin.