In order to explore the sociolinguistic connotation of the popular appellation"Bao Bao", the use of the popular term"Bao Bao"and people's understanding of the popular term"Bao Bao"were investigated and analyzed in depth in the form of questionnaires. The buzzword"Bao Bao"has the characteristics of diversity of expression and rich meanings. The use of the buzzword"Bao Bao"is influenced by the difference of people's psychological identity, gender, age and educational level. China's social harmony, economic development and people's freedom of speech provide a favorable environment for the long-te...