One of the important issues in the field of religious preaching is the production of suitable preaching works and content for the sake of efficiency and effectiveness on the audience. In recent decade, Qom Seminary has paid special attention to this matter in order to achieve this goal and to enrich the resources used by the scholars. The main question of this research is to investigate the developments of Qom Seminary in the production of preaching works. In response to this question, a classification of preaching works and content is first presented, and then the role of Qom Seminary in producing preaching content is examined both qualitatively and quantitatively. Ayatollah Haeri Yazdi, as the founder of Qom Seminary, and his disciples have shown serious attention to this issue, and in subsequent periods, the interest of scholars in producing preaching content increased significantly. However, the most significant developments have occurred in the production of post-revolutionary works, with several-fold growth in this area, although there is still a distance to the desired point. Analyzing the strengths and weaknesses of these works and stating the necessary characteristics for preaching works and content are another part of the mission of this article, which has been addressed. This article, using descriptive and analytical methods, introduces, analyzes, and critiques the preaching works and content of Qom Seminary.