We investigated needs and attitudes of online mental health education for undergraduate students by using a questionnaire survey about online mental health education, and found that undergraduate students have strong needs and positive attitudes to the online mental health education.They would like to accept psychological tests, lectures and propaganda on line rather than in the traditional forms, and they think it is more effective.Male students have much more confidence on the network, and are more positive toward online psychological counseling.Both male and female students believe that online mental health education should be developed.