The stereoscopic endoscope, a pair group of lenses having substantially parallel optical axes of the condensing light from the object and (13, 14) in the opposite direction the light condensed by each lens group 90 a pair of first prism for deflecting (15, 16), each first pair of the second prism are substantially parallel additional 90 deflects the deflected light by a prism (17, 18) The further comprising an optical system for imaging the two images with parallax and (9, 10), and an integrally a pair of lens (13, 14) and a pair of first prism (15, 16), a pair and a second prism (17, 18) distal end side rotary mechanism for rotating about an axis perpendicular to the optical axis with respect to (22), two images having a parallax that is imaged by the optical system (9, 10) The same imaging plane and the image pickup device (11) for imaging in (11a), by processing the image acquired by the imaging device (11), the two images obtained by the imaging device (11), a pair of lenses I and an image processing section for rotating the angle formed by mutually opposite directions with an axis perpendicular to the plane and the imaging plane including the optical axis of the group (13,14) (11a).この立体視内視鏡は、物体からの光を集光する略平行な光軸を有する一対のレンズ群(13,14)と、各レンズ群により集光された光を逆方向に90°偏向させる一対の第1のプリズム(15,16)と、各第1のプリズムにより偏向された光をさらに90°偏向させて略平行にする一対の第2のプリズム(17,18)とを備え、視差を有する2つの像を結像させる光学系(9,10)と、一対のレンズ群(13,14)と一対の第1のプリズム(15,16)とを一体的に、一対の第2のプリズム(17,18)に対して光軸に直交する軸線回りに回転させる先端側回転機構(22)と、光学系(9,10)により結像された視差を有する2つの像を同一の撮像面(11a)において撮影する撮像素子(11)と、撮像素子(11)により取得された画像を処理して、撮像素子(11)により取得された2つの像を、一対のレンズ群(13,14)の光軸を含む平面と撮像面(11a)に垂直な軸線とのなす角度だけ互いに逆方向に回転させる画像処理部とを備える。
