陈下之战前 ,楚已丢失彭城、楚腹心地区及淮南地区 ,仅有陈、城父等据点及江南地区 ;汉“有天下大半” ,已对楚军形成大包围态势。楚的战略是以陈为根基 ,企图据之振兴 ;汉的战略是调动主力部队赴陈 ,企图将楚军围而歼之。从楚汉双方投入的兵力 ,以及从双方的胜负得失来看 ,陈下之战实是楚汉相争最后阶段的大决战。由此楚汉成败兴亡的大局已定 Before Chu’s war, Chu had lost Pengcheng, Chu belly heart area and Huainan area, and only Chen and Chengfu and other strongholds and the Jiangnan area. The Han “has most of the world” has formed a great siege to the Chu army. Chu’s strategy was based on Chen as an attempt to rejuvenate it. Han’s strategy was to mobilize the main force to go to Chen in an attempt to annihilate and annihilate Chu. The forces invested by both Chu and Han both, as well as the pros and cons of the two sides, the war between Chen and Han is the final battle of the Chu-Han dispute. Thus the success or failure of Chu Han’s overall situation has been set