With the rapid development of digital technology, the opportunities and challenges of propaganda and ideological work in universities are unprecedented. This article constructs a digital propaganda and ideological work system centered on the “Four Dimensions and Five Elements”, and points out that under the collaborative cooperation of the “Three Rings, Two Chains, and Two Feedback” mechanism, the intelligent path of ideological and political work in universities can be optimized. The four-dimensional drive encompasses ideas, culture, education, and practice. The five elements include content, form, channel, subject, and effect, which together construct the basic framework of digital propaganda and ideological work. The three-loop mechanism consists of three parts: content generation and push loop, public opinion monitoring loop, and feedback optimization loop. Dual chain refers to the data analysis chain and the emotional interaction chain. Dual feedback is an online and offline linkage feedback system. This model enhances the pertinence, interactivity, and effectiveness of propaganda and ideological work through precise push, real-time monitoring, and dynamic feedback, promoting the transformation of ideological and political education in universities towards intelligence, precision, and systematization.