We are initiated ethnic traditional culture in modern fashion design, introduce new types and make changes into it, and combine it with a modern way of thinking and life. And then, traditional elements are able to be a trend as fashion styles, colors and materials. Consequently, in this study, we efficiently express intarsia technique and hand knitting as a motive of traditional patterns of China with unique aesthetic consciousness and formative characteristics recognized in the world in this text, and suggest knitwears as the possible high value fashion products. In this study, we consider and analyze literatures on theoretical background of decoration pattern of traditional culture of China, and figure out examples of design applying traditional pattern of China through fashion information sites inside and outside. We use and change adobe photoshop and illustration pattern to make pattern design by selecting a motive out of traditional patterns of China. In addition, we use intarsia, patchwork, crochet, race and hand embroidery technique in order to express various techniques of knitwears, and select simple silhouette in order to express traditional pattern of China in product design. The conclusion is as follows. First, we figure out the flow of history of traditional pattern of China, and find various motives in several thousands of history in China. Furthermore, we find that various kinds of patterns in traditional pattern of China are adequately applied to abundantly decorative motive of modern knitwears design. Second, we check modern beauty of a sculpture of pattern with abundant shapes and color expression in selecting motives of traditional pattern of China, and find it has limitless possibility as materials of modern fashion design. Third, we make use of photoshop and illustrator program as pattern works of selected images out of pattern motives. Fourth, we are able to use various colors and knit various types of pattern in intarsia knitting technique of knitwears design to express images of pattern in clothes. The knitting thickness is thin, and it has a comfortable sensibility of wearing and natural silhouette to be used for high-end products. Fifth, in addition to intarsia technique, we express pattern by various techniques such as patchwork, crochet, race and hand embroidery, and obtain even more various expression effect by adding abundant effect against texture to modern knit design. Sixth, we heighten the pride of ethnic culture by waking independence up by making use of traditional pattern in modern fashion design, and recognize that it differentiates between traditional pattern and others in the world and we express ethnic originality and creativity. Globalization process is too fast to insist traditional culture with a slogan of 'Being ethnic is global' only. Traditional pattern, one of symbols of spirit and ethnic will is loved by fashion circles in the world with expression type and artistic beauty of a sculpture, and the artistry is the ground of abundant inspiration. We hope that modern fashion design of China will not only make a new leap forward, but also excellently traditional culture will be passed down and developed by modern designers by combing traditional pattern with sensitivity of modern design.