After thousands of years of historical and cultural precipitation, the development of Chinese garden has become a mature and distinctive garden system. One of the characteristics of Chinese classic garden is the poetic imagery, it is also one of the treasures of contemporary garden design in Chinese style that absorbs nutrition and inherits culture. Taking landscape design of the Mountain Street Garden in Qinhuangdao city as an example, it summarizes the connotation of the poetic imagery in Chinese garden, and integrates the characteristics of the city and historical culture into the design, sees big landscape through small details, experiences deeply the aesthetic design in the poetic imagery of city garden, then realizes innovating from ancient in city garden, and shows the people the poetic imagery of Chinese garden.