This study aimed to develop an academic writing learning model based on writing theory and learning theory. From both theories, a name was formed, called: "In-Stage Guidance-Based Academic Writing Learning Model." The effectiveness of the learning model studied using Research and Development methods in fifth-semester students at Siliwangi University. The procedure is taken through the stages (1) initial/conceptual model formation, (2) initial model field testing, (3) initial model revision, (4) field testing of the revised model, (5) model validation, (6) good model dissemination through scientific forums. Through these stages, it is known that the in-stage guidance-based academic writing learning model has proven its effectiveness. Recommendation for the lecturers to study furthermore about it, so that this learning model could complement the existing writing learning model.