Today, with the ever-changing advancement of the world, it is important for learners to acquire the knowledge and skills needed to meet the demands of 21st century society. In relation to this, their English language proficiency needs to be improved to find more opportunities globally. Hence, one method that is being utilized by teachers when it comes to teaching English to their students is the application of the English Only Policy inside the class where English is the medium used and students are not allowed to use any language other than that. Thus, this study was conducted to determine the effects of the implementation of English Only Policy inside the classroom on the language learning of the students, specifically on the BSE English Students of Pangasinan State University, Lingayen Campus. It made use of a descriptive survey method and has 128 respondents in total. The researchers used an online survey questionnaire in collecting the data needed. Results showed that the implementation of English Only Policy in the classroom positively affects students’ language learning. Since they are required to speak and express themselves in English only, it allows them to improve their fluency, boost their self-confidence, improves their grammar and pronunciation, and their social relations. Therefore, it is recommended to use and implement an English Only Policy in the classroom to help students with their language learning.
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