Since the concept of digital campus was put forward, most colleges and universities have achieved the informatization construction, providing a strong boost for the development of colleges and universities. However, many colleges and universities are still facing problems in informatization construction, such as the phenomenon of data islands and the lack of top-level design of informatization construction. This paper analyzes and studies the informatization construction of colleges and universities in our country by using the case analysis method, clarifies the problems caused by the unreasonable informatization construction process, and puts forward corresponding suggestions for the informatization construction of colleges and universities based on the theory of business process reengineering.