Biological microscope metering calibration device

The invention discloses a biological microscope metering calibration device, and particularly relates to the field of microscope metering. The biological microscope metering calibration device comprises a main frame, one side of the main frame is provided with a lens cone, the top end of the lens cone is fixedly provided with an ocular lens frame, and the bottom end of one side of the main frame is fixedly provided with an objective table. According to the invention, by arranging a calibration ruler, a knob, a sliding block and side plates, when the height of the lens cone needs to be adjusted, the knob on the main frame can be rotated, a screw rod in an inner groove is driven to rotate through the knob, and the sliding block is driven to move up and down, so that the lens cone is driven to move up and down through a connecting block. During the adjusting process, the side plates at the two sides of the sliding block can move along the side grooves, so that the stability of the up-and-down movement of the len