Information security has become the cornerstone of the overall national security in the information age and personal information security is essential for personal privacy and asset protection. The article analyzes personal information security and information security literacy, designs a questionnaire to evaluate the status of personal information security, environment, awareness and competence in Shanghai, finding that people in Shanghai suffer a high frequency but low loss of personal information security attack. Their personal information security awareness has to be improved and information security competence is so normal, especially their ability of setting correct code should be promoted.