Being cruel for the first Emperor and idiotic for the second one, Shung Wu and Liu Ban marched in and conquered the city of ShanYan. Not long after being overthrown of Ching Dynasty, the war between Chwu and Han arose immediately. Duke Liu helped Liu Ban in wisdom from the marching line of County ShaPi to County ShaYi, ie from Chwu to GuwanChung. The main point of this article first focused on the comment on the behavior and talent of Duke Liu, ie strong revenge→wisely patient→liberation; secondly, exploring the trend for life of Duke Liu being devoted to Han Dynasty, ie taking revenge on Country Han→without desire; thirdly, being proven not to keep out of harm by discretion for Duke ChiFan himself.