Student centered learning is one of the learning strategies in active learning which is needed in learning English especially in the subject of speaking. According to some students, speaking is a difficult subject. This study aims to find out whether the use of mind mapping technique is effective in improving students' speaking ability of high school students in Central Java. The research method used in this study was quantitative in quasi-experimental research. This study used a sample of 54 students consisting of two classes, namely X Science 1 class as the experimental class and X Science 3 as the control class. The results of this study were processed using SPPS. To get the results of the study there were several activities carried out, namely pre-test before treatment and post-test after treatment. The difference in the control class has an average value of 86.19 and the experimental class has an average value of 91.11. While the results of the t-test Sig. (2-tailed) equal is .000, so it can be said that the mind mapping technique for class X students of Senior High School in Central java in the 2022/2023 school year is effective in improving students' speaking skills.
Key Word: Speaking skill, Teaching strategies, Mind mapping Technique