Product package design represents a company's image. Design innovation can affect a consumer's loyalty toward product, and the creation of characteristic is one way of the innovation as well. From the beginning of the product life cycle to all the contact moments with the consumers, it is so important to unify the presentation of product and the design connotation through the design's creative thinking. This research aims at exploring the concept of narrative design though literature review and applying the concept of "language comes from opposition", proposed by Saussure, to restructure the method of narrative design, and proposing an internal structure of package design, in order to find the way to innovation. Experimental design of tea bag packaging is also conducted as an application.