To investigate the relations of life stress，the cognition emotion regulation and life affects with a sampling survey of 2340 from 78 communities in 16 districts in Beijing，data showed that the overall life stress of Beijing citizens was medium at 2.91 in 5 point scale. The life stress of male，middle-aged，highly educated and high-income citizens were relatively large.

The most commonly used cognitive and emotional regulation were focusing on planning，positive reappraisal，acceptance，positive focusing for e Beijing citizens，catastrophizing blaming others，putting into perspective，self-blame and rumination were the less used cognition emotion regulation. Moderate life stress enhanced one’s experience of positive affect，while excessive life stress weakened one’s experience of positive affect；the more the cognition emotion regulation such as positive reappraisal，self-blame，positive focusing were used，the stronger the positive affect would be experienced，the more the cognition emotion regulation such as catastrophizing，self-blame，blaming others，putting into perspective were used，the more negative affect would be experienced. Effective cognition emotion regulation of affects were suggested in the report.