A pattern matching device 1 includes an image obtaining unit 101 that obtains an image of a subject containing plural types of biometric patterns. Further, the pattern matching device 1 includes a separation-and-extraction unit 102 that separates and extracts the plural types of biometric patterns from the image. Yet further, the pattern matching device 1 includes a matching unit 103 that matches the separated and extracted plural types of biometric patterns against pre-registered biological information for matching, thereby to derive plural matching results.