This study analyzed the patterns of unit school in 136 universities. The patterns of unit school were classified by organization, knowledge domains and major choices. In patterns by organization, social science and engineering showed a high rate in the united system, and language study showed a high rate in the department system. In patterns by knowledge domains, the related unit pattern within a category was 78.3% and the related unit pattern across categories showed a low rate. Applied knowledges in social science showed a high rate in the isolated pattern, and engineering showed a high rate in the related unit pattern within a category and the related pattern adjacent categories united by language study and human knowledge showed relatively a high rate, the related pattern across categories united by humanities and social science showed relatively a high rate. The patterns by major choices were the free major, the no major, the dual major, and the compound major. The dual major and the compound major were limited in a nursing science, medicine science, teaching profession, and the free major was limited in human social science. The patterns of unit school were not various. The related unit pattern within a category was universal, it means this pattern united similar departments. In this view, the unit school policy effected more or less the unification of similar departments. As we united the departments, the considerations were a degree of similar department, identity and status in knowledge. The related unit pattern within a category united similar departments, as we united related knowledges adjacent and across categories, similar status and identity were considered as the important factors. In comparison with the other knowledge domains, we can know that the human knowledge have much obstacles. The worry of \'the crisis of human knowledge\' can be understood in this context.