This research aims to improve the sustainability of the Kalibaru robusta coffee agroindustry through the use of soft system methodology and decision support tools. Data was collected through literature review, focus group discussions, interviews, observation, and field verification. The results show that quality assurance, technology, and resources are the main dimensions with a strong influence on sustainability. Based on the findings, 12 independent, 20 linkage, 23 dependent, and 16 autonomous sub-elements were identified. Strategic alternative formulations were developed using interpretive structural modeling and strategic assumption surfacing and testing methods. This study provides insights for sustainable development strategies in the robusta coffee agroindustry.