Abstract: The basic methods of fashion design applying deconstruction were analyzed by examples: the method reassembling, changing attribution, attaching and changing wearing way. The reassembling method is taking apart the fashion parts, changing their functions and then putting them together. The changing attribution method is changing fashion into another useful thing according to environmental conditions and personal preference. The attaching method is attaching accessories onto fashions to become more useful. The changing wearing way method is that a fashion should be designed by designers to have more than one wearing ways to choose from by wearers, which will make wearing a more interesting thing to people. The fashion design methods put forward in this paper can be helpful to study multi-functional garments.