This study aims to analyze the differences in Arabic speaking skills between female students in classes VII A and VII B participating in the speech program (muhadharah) at the Darussalam Sengon Islamic Boarding School in Jombang. It also seeks to determine the effectiveness of the speech program in developing the students' speaking skills. A quantitative comparative research approach was employed. The study population consisted of 40 female students—20 from class VII A and 20 from class VII B—selected using a saturated sampling technique. Data were collected through speaking skill tests covering pronunciation, fluency, vocabulary mastery, grammar, and comprehension. The data were analyzed using descriptive statistics, normality tests, homogeneity tests, and independent sample t-tests via SPSS software. The results indicate a difference in Arabic speaking skills between the students of class VII A and class VII B within the speech program. These differences were evident in aspects such as speaking fluency, pronunciation accuracy, vocabulary mastery, grammatical accuracy, and self-confidence during speech delivery. The program contributed positively to the improvement of Arabic speaking skills, although the level of proficiency achieved differed between the classes. This study provides empirical evidence regarding the variation in Arabic speaking skills between two classes participating in the speech program within an Islamic boarding school setting. The findings are expected to serve as a reference for Islamic educational institutions in developing the *muhadharah* program as a more effective learning strategy to enhance students' speaking skills