Economic history, as a core course for undergraduates in economics, contains rich educational content. Based on this, this paper proposes the use of a problem-based learning (PBL) approach in the teaching of economic history. The method involves teachers proposing topics and questions, with students completing the tasks, thereby deepening their understanding of economic history. The results of teaching practice have shown significant effectiveness and provide a reference path for the implementation of economic history teaching, broadening the approach to curriculum implementation.