The Cultural Heritage Preservation Act proposes the implementation of antiquity classification and defines the term “antiquity”. However, the Act only lists general categories and does not provide specific details on how to carry out classification. Antiquity custodian agencies (institutions) need to deal with many uncertainties, such as the organization of appraisal committees, in the determination of whether antiquities in their collections belong to the categories of national treasures, significant antiquities or ordinary antiquities. In addition, the agencies need to provide a report to the central competent authority for review. Another complicating factor is that according to the National Property Act, objects donated to museums are regarded as national property. They are to be appraised and registered with the National Property Bureau. Both “Acts” lack clear standards and specific guidelines. The objective of this article is to discuss the need for the competent authorities to set a clear classification system. Meanwhile, the authorities are required to explain the standards for determining the 262 types of antiquities currently registered as cultural property to enhance the efficiency and objectivity of antiquity classification. For donated collections, museums should be allowed to follow their own collection management policies and register the number of objects only, without the requirement to provide a monetary value. Finally, it is hoped that the Museum Act, which is currently being drafted, will effectively address the above-mentioned challenges faced by museums.