The state and life of cultural properties are related to their conservation environment. The temperature and humidity of the environment directly affect the physicochemical stability of cultural properties. Thus, maintaining constant temperature and relative humidity has been an important management principle for museums. In response to the trends in sustainable development and carbon emission reduction efforts, conservation experts have reflected on temperature and humidity standards for cultural property conservation. They have been seeking an answer to the question of how to efficiently regulate the temperature and humidity for cultural property conservation to achieve a balance between the need to preserve the natural environment and conserve cultural properties. The aim of this study is to explore feasible strategies for achieving this balance by discussing the conservation standards used by the world’s museums and the opinions of conservation experts and comparing these with current trends in sustainable development.