This paper is devoted on impact of post harvest losses at stages of operations. The data balances of food supplied were analyzed and quantified to indicate poor processing and storage facilities in the study Zone Post harvest losses significantly endanger the livelihood of stakeholders and farmers across the value chain by reducing valuable income and profitability. Research has shown that reduction of just one percent in post harvest losses can lead a gain of 40 million USD annually. Government investment will lead to huge reduction in post harvest and increase income levels of actors across various agricultural value chain. Over the past half a century in developing countries with the exception of Ganye, Adamawa State-Nigeria had seen labor saving post harvest system engineering, adopted at unprecedented levels. Post harvest activities in the zone had created power bottle around threshing/shelling of maize, cowpea and groundnut but with adoption of post harvest machines, it had helped and enhance low unit cost with economic impact of 40 percent in the study. Information revealed from the study that farmers sale 20 percent of their grain due to problem of storage facilities. The general grain losses and waste responded by 52 percent of famers is 15-20 percent in the study zone. Quality of grain after post harvest operation with photo type machines is recorded fairly good.