The present invention provides a sorting device for an injection molding product capable of easily starting molding. The sorting device for an injection molding product, includes an extractor which extracts a feature of a molding product molded by an injection molding machine, a storage unit which stores a feature to be compared with the feature extracted by the extractor, and a processing unit which compares the feature extracted by the extractor and the feature stored in the storage unit with each other, in which the processing unit determines whether or not a feature coinciding with the feature extracted by the extractor is stored in the storage unit, and in a case where the coincident feature is not stored in the storage unit, the processing unit stores the feature extracted by the extractor in the storage unit as a new feature.