This study determined the mediating effect of students' perception towards social media on the relationship between vocabulary learning attitude and language skills development. The quantitative approach using the correlational technique and mediation analysis were utilized in this study with a sample of 350 students coming from the senior high school department of the University of Mindanao main campus. Sets of adapted survey questionnaires were used in obtaining data from the respondents which were subjected for content validity and reliability analysis. The data were analysed using the Mean, Pearson-r, Multiple Regression Analysis, and Medgraph using Sobel z-test. The results reveal that the levels of students' perception towards social media, vocabulary learning attitude, and language skills development are high or oftentimes evident. Moreover, a significant partial mediation existed between these variables. A significant partial mediation of the students' perception towards social media on the relationship between vocabulary learning attitude and language skills development was proven in the study.