An attribute information processing device includes: an attribute information acquiring unit that acquires attribute information; an attribute value acquiring unit that acquires at least two types of attribute values including a first-type attribute value and a second-type attribute value corresponding to an attribute value of the acquired attribute information; a generating unit that determines a function for obtaining an evaluation value from the acquired two or more types of attribute values, determines a acquisition source of the first-type attribute value to be a first-attribute providing device that can provide the first-type attribute value concerning attribute information serving as a comparison target, determines an acquisition source of the second-type attribute value to be a second-attribute providing device different from the first-attribute providing device, and generates attribute evaluation information containing information on the function, an evaluation value, information for identifying the first-attribute providing device, and information for identifying the second-attribute providing device; and an output unit that outputs the second-type attribute value and the attribute evaluation information.