The"atmospheric aesthetics"advocated by German philosopher Gernot Böhme(格诺特·波默)has aroused great echoes in China.Böhme also takes"contrast"as an important condition for atmospheric construction in his book entitled Aesthetic(《感知学》)."Contrast"may indeed give the atmosphere a richer and more complex connotation.From the point of view of artistic creation,the use of"contrast"is particularly of aesthetic value.This is a universal expression in ancient Chinese poems.The atmosphere in poems has the unignorable spatial character.The existence and use of contrast can provide the aesthetic space of the poetic works with strong tension.The atmospheric contrast in poetic works can be roughly divided into two situations.In one situation,the atmospheric contrast is presented in the surface structure of the poetic works,while in the other situation,a stronger atmosphere is created by the poet due to the stimulation of contrast he feels.Böhme's atmospheric aesthetics has a special function of synesthesia,which is widely known to the Chinese poetic circles because of Professor Qian Zhongshu's(钱锺书)explanation of the phenomena of synesthesia in Chinese poetic works.From the perspective of perception,synesthesia is also inseparable from contrast.Contrast does not lead to the fragmentation of the realm in the poetic works,but forms aesthetic harmony on a higher level.It is precisely because of the existence of a large number of contrasts that the poetic works can produce a deeper and richer aesthetic imagery.