The main purpose of the study was to examine the effect of flipped classroom assisted by mobile technology on the self-efficacy of Infantry Officer School of Indonesian Marine Corps students. Experiments were used in this study. the subjects were all 133 Infantry Officer School of Indonesian Marine Corps Student Basic Stage Advanced Group, who were grouped into two groups: the experimental group, 67 people, and the control group, 66 people. The learning design of the flipped classroom assisted by mobile technology is applied to the experimental group. In contrast, the control group is subject to conventional learning models implemented in previous learning. Data collection techniques used by researchers are questionnaires and tests. The questionnaire is used to measure self-efficacy. Meanwhile, the test method collected data about students' conceptual comprehension abilities in the Map Reading material. The data collected about self-efficacy in conceptual comprehension skills will be analyzed using the t-test. The use of the flipped classroom assisted by the mobile technology model can have a positive influence on student self-efficacy. It is evidenced by the results of the t-test that there is a significant difference in the average self-efficacy results between experimental group students (M=51.46; SD=2.298) and control group students (M=41.15; SD=2.910), with t(131)= 22.694, p=<0.001.; Value Sig. (2-tailed) 0.00 <0.05 show a significant difference between self-efficacy in the flipped classroom assisted by mobile technology and conventional classroom.