According to resent Internet survey data，this report analyzed social mentality of Hong Kong citizens in terms of social expectation，social sensitivity and political attitude. The results show that：On social expectation，Hong Kong citizens have higher safety expectation than individual social mobility. People with higher subjective social status cognition would be keen on security circumstance of Hong Kong. Male and young people are more take care of wealth and social dignity. On social sensitivity：Hong Kong citizens are living under enormous pressure. They also have strong sense of security，as well as，general sense of happiness and fairness. The sense of happiness，security and fairness will be significantly promoted along with the rise of income and subjective social status cognition. People whose income is between $HK 10，000 and $HK 40，000 have the strongest pressure.