The quality of students' speaking skill is affected by some factors and one of them is their self-esteem. Self-esteem has a big influence on students' ability to do something. Different research objects produce different results. The researcher used EFL students in this study to find out the relationship between students' speaking skill and their self-esteem and to find out how significant the relationship was between the two. The study aims to determine the relationship between students' speaking skills and students' self-esteem of NCL Madiun's Mover F class. There are 180 students in the NCL Madiun Mover class, which is divided into ten classes. The purposeful sampling technique was used in this study, and the sample consisted of 19 students from Mover F class, with 12 boys and 9 girls. Data were gathered using speaking tests and self-esteem questionnaires. According to the findings, the average score for speaking skills was 73.53, while the average value for self-esteem was 72. Pearson's product-moment correlation produces 797 results and a sig value of less than 0.05, corresponding to 0.0001. The researcher concluded that H[subscript 1] was accepted and H[subscript 0] was rejected, implying that there is a relationship between students' speaking abilities and self-esteem in the NCL Madiun Mover F class. Students with high self-esteem outperformed students with low self-esteem.