A biochemical analysis data producing method includes the steps of exposing stimulable phosphor layer regions formed in a stimulable phosphor sheet and spaced from each other using standard light, irradiating the stimulable phosphor layer regions with a stimulating ray, detecting stimulated emission to produce correction data for the individual stimulable phosphor layer regions, superposing the stimulable phosphor sheet on a biochemical analysis unit including spot-like regions formed in the same pattern as that of the stimulable phosphor layer regions and selectively containing a radioactive labeling substance, exposing the stimulable phosphor layer regions to the radioactive labeling substance, scanning the stimulable phosphor layer regions with a stimulating ray, detecting stimulated emission to produce biochemical analysis data, and correcting the biochemical analysis data using the correction data. According to this biochemical analysis data producing method, it is possible to produce biochemical analysis data having excellent quantitative characteristics.