To provide an identification device and an identification method capable of classifying and identifying information at high speed while using plural classification standards and scales and further using the conditions at the same time for information to be identified.

An information identifying device 11 is composed of plural combined information classifying devices 4 composed of information acquiring devices 1 and information judging devices 2 and an information collating device 5. The information identifying method is executed by collating the condition of combining identification information shown by plural combined information classifying devices 4 respectively capable of identifying information with known information for information collation through the information collating device 5.