To provide a method for generating data for biochemical analysis.

An unit for biochemical analysis and an accumulative phosphor sheet are overlapped each other on a substrate of an exposure device so that the relative positional relation among the unit for biochemical analysis, the accumulative phosphor sheet and the substrate of the exposure device are maintained constantly. A stimulable phosphor is exposed with a radioactive marker substance. A plurality of radiation data recording regions in which radiation data are recorded are formed on positions corresponding to a plurality of adsorptive regions of the unit for biochemical analysis. The accumulative phosphor sheet in which a plurality of radiation data recording regions are formed is set on a sample stage of a scanner so that the relative positional relation between the accumulative phosphor sheet and the sample stage are maintained constantly. The stimulable phosphor layer is scaned by excited light so that only a plurality of radiation data recording regions are selectively irradiated with the excited light. The stimulable light discharged from a plurality of radiation data recording regions is detected photoelectrically.