Abstract: Chinese cloud pattern has a long history, which is one of the most important representative elements in Chinese traditional culture.The design of Chinese cloud pattern reflects the people's worship of nature and aspiration of pursuing a better life.Besides, Chinese cloud pattern is a symbol of auspiciousness and good harvest and it has a high artistic and cultural value.In the past, the research in Chinese cloud pattern is used to focus on its historical evolution and the various kind of application.The transformation of Chinese cloud pattern into modern pattern is a key to its application in modern jewelry design.It is very important to use modern design language in the research of Chinese traditional cloud pattern.On the basis of literature review and relative previous study, this paper discussed Chinese cloud pattern by using the modern design methods and ideas.Besides, application of Chinese traditional cloud pattern in modern jewelry design was analyzed during the transformation of traditional cloud pattern into modern patterns.It comes out that Chinese traditional cloud pattern can be applied to modern jewelry design from the aspects of shape, meaning, verve and momentum, as shown in the design practice of the author.