STEM education is one of the latest learning approaches, particularly in Indonesia. STEM integrates four scopes of studies including Science, Technology, Engineering, and Mathematics. STEM approach requires an appropriate learning model in order to achieve the effectiveness of learning objectives. Therefore, the aim of this study is to explore the effectiveness aspects of implementing PjBL learning model in STEM education. This study was conducted by analysing journals examined the effectiveness of the application of PjBL learning model in STEM education. The syntax in the PjBL which includes planning, creating, processing, and evaluating has similarities with the steps in implementing STEM learning. As a form of integration of the four fields of study or a combination of several fields, STEM learning was applied to overcome contextual problems through designing, executing (processing), and evaluating. The effectiveness of using the PjBL learning model in STEM education is generally supported by its characteristics. Based on the review of seven journals that link PjBL and STEM, it is known that PjBL is one of the learning models which is significantly appropriate to be implemented in STEM education to increase the effectiveness of this approach.