In this research, we studied to know whether community-based instruction enables intellectual disabilities in special school to improve social behaviors required for the necessary skills at subway, retail chain stores, and fast food restaurants. We also studied how inner factors of those students such as age, sex, and intellectual level affect learning of social behaviors. Embedded learning opportunities, visual cues as instruction strategies, least-to-most prompting, and time delay were used for interventions. As results, social behaviors required for the necessary skills at subway, retail chain stores, and fast food restaurants were improved. Social behaviors were improved regardless of sex, intellectual level, and the social behaviors were improved more for young students.