The article，based on data from 2460 Beijing residents，explored the status quo and the influential factors of Beijing residents' mental health，investigating Beijing residents' need for mental health services.The results obtained are as follows：（1）Most residents have good mental health；（2）Individual factors（gender，etc.），family factors（marriage etc.）and social factors（social support，etc.）have an influence on mental health；（3）The factors of Beijing residents' Mental distress from high to low are vocational development，study/work stress and children's education. Although 76.3% think mental health work is very important，but less residents want to seek help from professional organizations. The resources of mental assistance from high to low are self adjustment，talking with family members and friends' help，and hospitals.