The mental health of college students with financial difficulties is a matter of great concern to the society. The mainly psychological characteristics are academic difficulties, interpersonal avoidance, emotional distress, imbalanced personality development and others. The main problems of mental health education for students with financial difficulties are: there is not a precise psychological education system for students with financial difficulties. The society generally attaches importance to "economic poverty alleviation" but ignores "psychological poverty alleviation". Negative psychological problems are highlighted, while positive psychological capital training is ignored. This paper proposes to improve the psychological early warning assistance system for students with financial difficulties, to carry out mental health education in a targeted manner, and to cultivate the psychological capital advantages and sound personality of students with financial difficulties.