Abstract: A biochemical image analyzing apparatus includes image data memory for storing image data of a biochemical image produced based on data obtained by converting to electrical signals locational information of regarding labeled substance contained in a sample produced by one-dimensionally distributing at least one specimen, a data processor for selecting image data from among the image data stored in the image data memory and processing the selected image data in a predetermined manner to produce display image data mapped in a planar coordinate system, a display for displaying an image based on the display image data, and a first image data divider for producing first divided coordinate data by dividing the display image data along one coordinate axis of the planar coordinate system to produce lanes defining regions to be quantified along the one coordinate axis.