Abstract: The coarse/fine adjustment coaxial handle for feeding microscope stage comprises a feed screw shaft, a tubular member rotatably fitted over the feed screw shaft and equipped with a disc plate fixed thereto, a fine adjustment handle rotatably fitted over the tubular member and surrounding the disc plate, a reduction gear mechanism interposed between the feed screw shaft and the fine adjustment knob, a first frictional resistance imparting mechanism for imparting frictional resistance to the tubular member, second frictional resistance imparting mechanism for imparting frictional resistance to the disc plate, and a coarse adjustment handle pivoted to an eccentric position on another disc plate connected to the disc plate. The coarse/fine adjustment coaxial handle permits very fine stage feeding without fail and coarse adjustment smoothly with simple operations.