"Chang 'an Changle" has profound implications and expresses people's yearning for a better life and a stable society. Chang 'an, as the ancient name of Xi 'an, was once one of the important birthplaces of Chinese civilization and the political, economic and cultural center of many dynasties. Changle represents the eternal state of happiness, tranquility and harmony. The implication of "Chang 'an Changle" contains people's expectations for peace, prosperity and stable life. It implies people's pursuit of national stability, social harmony and family happiness. Under the background of Chang 'an, an ancient city, Changle represents an eternal happiness, which comes from a stable social order, a prosperous economy and a rich cultural background.