Creativity is always associated with STEM Education but being creative does not mean having acquired scientific creativity skills. Scientific creativity skills is important in STEM Education as it helps students to provide different possible solution to a problem. The purpose of the study is to investigate the effect of STEM Project Based Learning Orientation on students’ scientific creativity skills. The study was carried in three phases on 33 lower secondary students. This study employed a one group quasi-experimental design. The first phase is the development of knowledge followed by project development and ends with competition based phase. A set of questionnaire on the aspect of scientific creativity skills was given to the students after the intervention. The construct for scientific creativity was divided into two; inquiry skills and creative thinking. Inquiry skills in this study were observation skills, making hypothesis, giving explanation and making inferences. Whereas creative thinking consists of divergent thinking, convergent thinking and combination thinking. The findings revealed that through Integration STEM Project based learning orientation the students’ scientific creativity skills increased significantly. The findings also showed that there is a relationship between scientific creativity with STEM Project Based Learning Orientation.