Assuming that rural population of Rwanda almost agricultural knows a precariousness of its productive assets specifically cultivable land. And that their organizational mode is not adapted in order to help them enjoying a sustainable socio-economic life. My main objective is to understand the magnitude of this landless and the fragility's degree of this organizational mode. I made an exploratory survey to verify four assumptions: (i) The rural population of Rwanda lives an excessive landless accompanying by a high fragmentation; (ii) This landless increases by generations to generations; (iii) In these circumstances, this operator lives an organizational mode based primarily to individualism which does not allow him to fully enjoy its physical, moral and intellectual forces; (iv) Its socio cultural environment is not hostile to cooperative mode that allowed to overcome challenges in time and space such as those uncounted by Rwandan rural population. The analysis of my findings allowed me to confirm those four assumptions and I have reached my goal. My research result is brought to knowledge of many readers, various speakers and decision-makers.