To circumscribe the prefecture of Faranah through the agroecological evaluation of some professional agricultural organizations in the context of sustainable development with the fight against climate change and the preservation of biodiversity For this evaluation of the agroecological performance of the farms of the union of Kankelen market gardening groups (UGMK) and the NERICA union (U.NERICA) in the prefecture of Faranah, in the Republic of Guinea, we chose. It consists of evaluating their performance based on three components (ecological diversity, spatial organization and agricultural practice). This evaluation provides guidance on the agroecological behavior of farmers in market gardening and rice farming in the said locality. This work highlights the combination of fifteen (15) indicators structured in three dimensions cited above and that the judgment reference is based on the maximum agroecological performance score. It is proposed by the Farm Sustainability Indicator (IDEA) method. The results obtained by these unions including an operator workforce of three hundred three (303) for the UGMK and one hundred and ninety-two (192) for the NERICA union, proved appreciable with a score of 65.7% for UGMK and 62.30% for U. NERICA. This is due to the massive participation in training workshops led by their development partner (ISAV, PNAAFA, AgriFARM, National NGO : AGUISA, APIC guinea).