Being thin and soft, resistance kink characteristic and the medical application tube which is superior in tensile strength, it designates that it offers stably with easy production method as topic. Outside consists of the resin being production method of the medical application tube which possesses coil layer inside the layer tube, it inserts the aforementioned coil layer into the layer tube outside the description above, heating at the molding temperature which is lower than fusion point of the layer tube outside the description above, the above-mentioned topic is solved the layer tube outside the description above by the production method of the medical application tube which features that it contacts locks in sliding possible state with respect to the aforementioned coil layer.< Selective figure >Figure 1薄肉、柔軟で耐キンク性と引張強度に優れた医療用チューブを、容易な製造方法で安定的に提供することを課題とする。樹脂からなる外層チューブの内側にコイル層を有する医療用チューブの製造方法であって、前記外層チューブ内に前記コイル層を挿入し、前記外層チューブの融点より低い成形温度で加熱して、前記コイル層上に前記外層チューブを摺動可能な状態で接触固定することを特徴とする医療用チューブの製造方法により上記課題が解決される。【選択図】図1