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This research aimed to analyze the role of Realistic Mathematics Education (RME) approach with GeoGebra in enhancement, achievement, and phenomena of Mathematical Inductive Reasoning Ability (MIRA) and Mathematical Self-Confidence (MSC) of Junior High School students-, and due to no research on the dependent variable and independent variable together yet. The method used was experimental research with a pretest-posttest Control Group Design. In this research, the population was all 7th graders in Cimahi City. The research sample was 69 students consisted of two classes that were randomly selected and divided into experimental and control classes in a school. The instrument used an essay test on MIRA and MSC scale. The results showed that: (1) Significant enhancement and achievement of MIRA and MSC for students who learned through RME with GeoGebra were better than the Ordinary Learning, (2) Students- achievement of MIRA through RME with GeoGebra was at a strong level and for students with ordinary learning was at a sufficient level, (3) Students- achievement of MSC through RME with GeoGebra and students- with ordinary learning were at a good level, (4) Students- MIRA on the indicator explained that the model had not been achieved ideally.