PROBLEM TO BE SOLVED: To provide a surgical endoscopic device capable of smoothly performing surgical operation or the like by easily avoiding the interference of the flexible tube part or operation part of a soft endoscope with an operating device in the outside of the body.SOLUTION: In the flexible tube part 11, the region (highly flexible part) 11ss on the base end side of the flexibility transfer part 11x formed on the way of the flexible tube part 11 is more flexibly formed than the region on the tip side thereof so that the length Lss from the flexibility transfer part 11x to flexible insertion parts 11, 12 and 13 (that is, the length of the highly flexible part 11ss) becomes longer than the length Ls from the tips of the flexible insertion parts 11, 12 and 13 to the flexibility transfer part 11x.COPYRIGHT: (C)2012,JPO&INPIT【課題】体外において軟性内視鏡の可撓管部や操作部が手術デバイスと干渉するのを容易に回避させることができて、手術操作等をスムーズに行うことができる手術用内視鏡装置を提供すること。【解決手段】可撓管部11において、その途中に形成された可撓性変移部11xより先端側寄りの領域と比較して基端側寄りの領域(高柔軟部)11ssの方がより柔軟に形成されていて、可撓性挿入部11,12,13の先端から可撓性変移部11xまでの長さLsより、可撓性変移部11xから可撓性挿入部11,12,13の基端までの長さ(即ち、高柔軟部11ssの長さ)Lssの方が長く形成されている。【選択図】 図1