ABSTRACT This research aims to analyze the instructional communication elements which applied on vocational class for mild mental retardation in special school of Negeri Pembina Yogyakarta. This research was used the case study method with qualitative approach. The informants of this study were 9 teachers and 9 students for all vocational class. The data was collected through observation, interviews, and documentations. Analysis of the data used descriptive analysis which after the data was collected than the data was analyzed to get the conclusions. management.