The integration of entrepreneurship education and STEM education has emerged as a crucial field of research, necessitating an immediate providing a comprehensive review of the field from diverse viewpoints, thereby supporting upcoming research projects. This systematic review aimed to address the following three research questions: What are the characteristics and trends of the current studies on integrating entrepreneurial education into STEM education? (RQ1); Based on the extent of integration, what are the types of integration of entrepreneurial education into STEM education? (RQ2); Following an in-depth analysis and overview of each type, what are the corresponding patterns for each type of integration of entrepreneurial education into STEM education? (RQ3). Utilizing the PRISMA procedure's criteria, we pinpointed 31 eligible articles. Reacting to RQ1, a descriptive analysis has been conducted to provide a comprehensive description of the publication year, the first author's nation, research methods, participants, and impact. Reacting to RQ2, we conducted an in-depth content analysis and categorized entrepreneurial STEM education into three distinct types: the entrepreneurial element-embedded design, the whole-process integration, and the project-driven entrepreneurial design. Reacting to RQ3, the flowcharts provided for each type offer a practical template for understanding the patterns of integration. The Type I pattern shows entrepreneurship as an additional component to the STEM curriculum, the Type II pattern illustrates a more integrated approach throughout the educational process, and the Type III pattern displays a project-driven, in-depth integration of entrepreneurship.