Based on the theories and research methods of content analysis and discourse analysis，this paper analyses the Canadian mainstream media’s coverage of China since 2014，aiming to summarize the characteristics of China’s national image，and to explain the ideology and interests of the Canadian mainstream media in the construction of China’s national image. This study attempts to provide a theoretical reference and base for shaping a positive national image，developing a healthy Sino-Canada relationship，and promoting the all-round China-Canada strategic partnership in the new era.