This creation essay is mainly focus on the costume design and construction of TNUA T305 Black Box Theater production, Dangerous Liaisons (2018 April 13-15). In order to present the special point of view of the director’s, this production adapts the whole story into 3 different time and space settings, which are: 18 century Paris France, 1920s New York USA, and 2018 Taipei Taiwan. The costume designer tries to de-construct and then re-construct the 3 different periods costume elements and their visual vocabularies to give this play a new vision. The ultimate goal is to work with the directing and acting departments to show the unchangeable humanity and psychology of the long human history, and the double-relationship of the pretend & disguise of the characters.