This research aims to develop an online Project-Based Collaborative Learning (PBL) model design by utilizing an asynchronous Online Discussion Forum (ODF) that can systematically direct teachers or lecturers as facilitators in learning, and how experts think about the design. Using the Research and Development (R&D) method, this design was created, developed, and then validated by five experts in the field of learning design. The results of the expert validation state that this instructional model's design is feasible to be used in learning; therefore, it can effectively strengthen the use of project-based collaborative learning in an online environment using the online discussion forum tool.