This paper delves into the role of Positive Behavior Intervention and Support (PBIS) in managing behavior while teaching English to students with special needs in mainstream classrooms. PBIS is an approach that reinforces positive behavior, creates a supportive learning environment, and addresses behavioral issues. The paper illustrates the way BIS can be used in English classrooms to meet the needs of special education students, enhancing their social interactions and academic performance. The paper reviews existing literature and presents a practical case study to demonstrate that PBIS not only benefits students with special needs but also contributes to a more inclusive and effective educational environment for all students.