This study aims to see the integration of problem-based learning in STEM education can improve the environmental literacy of elementary education students. The research is qualitative and uses the literature study method. Searching journals from the Science Direct search engine, Science Education Journal, ERIC, Google search engine, and others with the keywords Problem-Based Learning, Science, Technology, Engineering and Mathematics (STEM), environmental literacy, scientific literacy resulted in 3,298 journals. Derived from Sciencedirect 2016 journals, ERIC 873 journals, Indonesian Science Education Journal 49 journals. Through the above process, 8 journals were obtained. The appropriate journal was then analyzed and extracted. Journals that mostly show the STEM integrated Problem Based Learning learning method as one of the learning methods which is expected to be able to increase the literacy of students. This achievement is determining environmental problems, initiating ideas, mastering environmental problems, controlling environmental problems, creating products as a form of overcoming environmental problems and testing these products. This is because environment-based learning is effective in improving the attitudes and knowledge of students. Based on the results of the literature review, it can show that the application of STEM education that is integrated with the PBL learning model can improve environmental literacy in basic education students.