University courses should have both breadth and depth. However, most courses in universities only focus on the breadth construction, while neglecting the depth construction, resulting in students being unable to apply the knowledge they have learned to conduct research or solve real-world application problems. The students’ high-level abilities are insufficient and not well-trained. Therefore, in this paper, we propose a T-structured course design method to ensure both breadth and depth of a course. The proposed T-structured course design method includes four aspects: T-structured course contents, T-structured teaching activities, T-structured examination formats, and T-structured homework difficulty. By applying our proposed T-structured course design strategy to the course Optimization Algorithms and Intelligent Computing, good results are achieved, demonstrating the applicability of our proposed strategy.