If sorghum is primarily considered as a pillar of food security in developing country, its use for animal nutrition, energy and biomaterial production is increasingly underlined. CIRAD is involved in several projects aiming to develop sorghum for feed and bioenergy purposes (ANR GRassbiofuel, UE-FP7 Sweetfuel, ANR S3F for Haïti…). In Brazil EMBRAPA is currently developing sorghum varieties able to complement ethanol production based on sugarcane. In West Africa, the role of sorghum towards animal nutrition is more and more mentioned. The participants of the workshop first elaborated a global strategy aiming to support the development of sorghum as a multi-purpose crop, and then lines of research of common interest including : the development of tools to characterize the nutritional and energetic value of sorghum biomass, the characterization of the phenotypic diversity of sorghum for non-food traits, the development of high resolution populations for the analysis of traits of agronomic interest, the requirements for integrative crop livestock system modelling... were identified.