Abstract: The aim of this study was to identify the training needs of extension experts related to Environmental Security in Agriculture (ESA) in Khuzestan Province, Iran. The sustainable use of environment for agriculture has become a global priority of vital importance, requiring urgent solutions in view of intensifying competition. Based on multiple researches training is a key input and requirement, of sustainable resources management in agriculture. The population consisted of all extension experts in the province (N = 96). By census method all of experts were interviewed. Consequently 89 questionnaires were analyzed. Ranking indicated that the six most important training needs related to ESA were: (1) new irrigation systems, (2) water productivity and efficiency in agriculture, (3) food safety and pesticide residues, (4) biological systems, (5) economics of sustainable agriculture and (6) water quality with respect to agrichemicals. As revealed that level of education, perception of experts regarding ESA, social participation and level of job satisfaction may well account for 61% of changes in knowledge of experts regarding ESA.