To provide a support device for a stereomicroscope capable of moving a microscope main body attached to the tip of a support device in a wide range on an operation table at an arbitrary inclination while the support device is fixedly attached to a workbench.SOLUTION: The support device 1 is composed of a clamp type fixing metal fitting 2, a cylindrical part 3 and a flexible supporting arm 4. The clamp type fixing bracket 2 fixes the supporting device 1 to one side edge of the horizontal working plate 6 and is formed in a cuboid shape in a side view and screwed in the center of the coaxial lower face plate with a hand-tightening tightening bolt upwards, and the tightening bolt When fastened, the horizontal working plate 6 is tightened and fixed between the tightening surface of the bolt tip and the cup-like top plate. The cylindrical portion 3 is erected on the upper surface side of the coplanar top plate of the clamp type fixing metal fitting 2 with a length of 20 to 30 cm. The flexible supporting arm 4 is formed of a flexible pipe having a rigidity of 1.0 to 1.5 m in length, one end of which is connected to the upper end of the cylindrical section 3, and the other end of which the binocular microscope main body 5 can be attached .(FIG.【課題】支持装置を作業台に固定取り付けした状態のまま、支持装置の先に取り付けた顕微鏡本体を作業台上の広範囲に、任意の傾きで移動させられる実体顕微鏡用支持装置を提供する。【解決手段】支持装置1はクランプ式固定金具2と円柱部3と可撓性支腕4で構成する。クランプ式固定金具2は支持装置1を水平作業板6の一側縁に固定するもので側面視コ状で、コ状下面板中央に手回し可能な締めつけボルトを上方に向けねじ込み、該締めつけボルトをねじ込むとボルト先端の締めつけ面とコ状上面板との間で水平作業板6を締めつけて固定されるよう構成する。円柱部3は長さ20乃至30cmとしてクランプ式固定金具2のコ状上面板の上面側に立設する。可撓性支腕4は長さ1.0乃至1.5mの剛性を有する可撓性パイプで形成し、一端を円柱部3上端に接続し、他端に双眼顕微鏡本体5を取り付け可能とする。【選択図】図1