The endoscope system includes a grip portion, a guide pipe extending from the grip portion, a distal end portion capable of acquiring an image, and an endoscope passing through the guide pipe and capable of bending in at least one plane A bending operation section rotatably provided on the grip section and capable of adjusting a bending angle of the endoscope and a bending operation section provided on the bending operation section and indicating a direction in which the distal end section extends in the one surface And an index.内視鏡システムは、把持部と、前記把持部から延びるガイドパイプと、像を取得可能な先端部を有し、前記ガイドパイプ内に通されるとともに少なくとも一つの面内で湾曲可能な内視鏡と、前記把持部に回転可能に設けられ前記内視鏡の湾曲角度を調整可能な湾曲操作部と、前記湾曲操作部に設けられ、前記一つの面内における前記先端部の延びる方向を示す指標と、を備える。
