This study aims to determine the feasibility of PjBL-based digital teaching materials used in history learning, and to determine the effectiveness of PjBL-based digital teaching materials used in history learning. This research includes development research (R&D). The development procedure refers to the Borg and Gall development model namely: Potential Problems, Data Collection, Product Design, Design Validation, Design Revision, Product Trial, Product Revision, and Usage Trial. The test subjects were students of class XI. MAN 2 Medan Model. With a total of 31 students, data collection methods are interviews and instruments. The results of the development research show that: PjBL-based digital teaching materials developed in history subjects are appropriate to use, because they have gone through the expert/expert validation stage in the fields of material and media, and PjBL-based digital teaching materials developed in history subjects are effective in use because it has gone through several requirements tests and carried out a history learning achievement test by comparing it to the control class using different learning media. The results of the study show that: PjBL-based digital teaching materials used in history learning are appropriate for use in the learning process, and PjBL-based digital teaching materials that are used effectively can improve history learning outcomes.