College students' mental health education is an organic part of higher education and it is an effective way to improve the college students' quality. However, there are still some difficulties in the education. Psychological capital is the main research areas of positive psychology which includes self-efficacy, hope, optimism and tenacity, and it is also the core quality. This paper, from the perspective of developing psychological capital, explains the teaching objectives, basic principles of curriculum design, teaching content, evaluation methods of college students' mental health education curriculum so as to improve the teaching effect and serve the students.