Abstract: The establishment of positive psychological archives for college students mainly includes three aspects recorded: basic personal information, psychological characteristics and states, and social observation by others. To construct this type of psychological archives, colleges and universities should broaden their online and offline channels, collect data that reflects college students’ self-examination and external evaluation in a three-dimensional manner. By establishing a collaborative digital library of positive psychological archives at the school level, scientifically and accurately utilizing positive psychological archives at the teacher level, and deeply utilizing personal positive psychological archives at the college level, it will promote the positive psychological development of college students and improve their mental health level and the quality of talent cultivation in universities.