Remarks on prose provide significant resources for the study of the prose theory in the Ming dynasty. One of the main methods for compiling remarks on prose in the Ming was to excerpt and rearrange the materials from available works, such as those published in the previous eras; articles, letters, and prefaces from the Ming dynasty that contain discourses on the prose theory; and citations from eight-legged essays. These kinds of remarks on prose are usually unoriginal; however, the repeated texts can reflect the subtle changes in the field of literary criticism and the development of the prose theory. As the social demand of learning prose writing grew and the publishing industry developed in the mid- and late Ming, these prose theories with practical use became more and more identifiable with the lower-middle class, which eventually constitutes an extremely important branch of the prose theory in modern times.