PROBLEM TO BE SOLVED: To provide a biological information processor which is capable of reducing labor and time for inputting biological information, and to provide a biological information processing method.SOLUTION: The biological information processor includes: a time selection part for selecting either of measurement times in the trend of the measurement values of the biological information an acquisition part for acquiring a plurality of measurement values from a storage device at the plurality of measurement times during a period including the selected measurement time a display part for displaying the acquired plurality of measurement values on a screen of a display device a value selection part for selecting either of the displayed plurality of measurement values and a change part for changing the measurement value in the trend at the selected measurement time into the selected measurement value.
