The present study examined long-term maintenance of classroom-based Social Skills Training (SST) on preschool children. Twenty-six preschool children (4-5 age) participated in six sessions of SST. The target social skills were positive social initiations and responses. The coaching procedure comprised instruction, modeling, behavioral rehearsal, feedback, and reinforcement. The results indicated maintenance of intervention effects in teacher-rated social skills, problem behavior, and social behaviors assessed through behavior observations. At 1 year follow-up there were improvements on teacher-rated problem behaviors (aggressive/disruptive behavior and inattention/hyperactive behavior) for classroom-based intervention for boys.