The present invention is an improved structure of an endoscope fiber-optic conduit, which mainly covers the signal wire, and is entirely housed inside the outer skin of the catheter to form a stable and balanced integrated structure, which improves the effective use of high space and is convenient for application. The smaller diameter of the endoscope catheter, and the overall balanced structure, allows the catheter to be evenly dispersed during the bending action, and facilitates the user's operation, thereby enhancing the practical effect.本創作為一種內視鏡光纖導管改良構造，主要將光纖絲包覆住訊號線，而整體容置於導管的外皮內部，形成為穩定平衡的一體構造，提昇高空間的有效利用，便於適用在更小直徑的內視鏡導管，而藉由整體的平衡構造，可使導管於彎曲動作時，力量平均分散，而便利使用者的操作，乃增進實用功效者。
