In the name of environmental protection, the Antarctic Treaty Consultative Meeting seems to have borrowed the paradigm of international trusteeship of the United Nations for managing the Antarctic land-based protected areas. By comparing and analysing the critical questions highly concerned, this paper offers preliminary thoughts on the development and refinement of the conception of land-based protected areas as a déjà vu system of international trusteeship and its surrounding legal applications and implications in continental Antarctica, and challenges the direction followed by this system in protecting Antarctic intrinsic values in legal discourse.