In the middle of the Qing Dynasty,the famous Long poet Hu Yi made four trips to Hexi in his life,both as a traveller and as a eunuch,which enriched his life experience,expanded the breadth of his poetry,and contributed to the fi-nalisation of the artistic characteristic of"natural affinity"in his poetry,which is of special significance.During his four trips to Hexi,Hu Yi composed more than a thousand poems,among which there are many good works that describe and sing about the different mountains and rivers in the four seasons of Hexi,presenting a fuller and more realistic Hexi,which is a bright pearl in Hercynian literature and poetry of the Qing Dynasty.