The purpose of this study was to investigate whether learning strategies play a mediating role in the relationship between learning attitude and foreign language proficiency. Partial Least Squares Structural Equation Modeling (PLS-SEM) were employed to analyze the structural connections among language learning strategies, learning attitudes, and their potential influence on language proficiency. The data were gathered from 1208 Saudi Arabian female secondary school students. The results indicate that learning attitude significantly influences language learning and has a notable impact on students' foreign language proficiency. Additionally, language learning strategies, particularly strategies such as memory, compensation, and cognitive, play a pivotal role in mediating the connection between learning attitude and language proficiency. This study holds implications for English language teaching. Foreign language educators should not only focus on imparting knowledge but also on fostering students' learning strategies and attitudes.