The quality of wines does not only lie in production years, but also in raw materials (variety, climate, geological conditions, etc.), brewing techniques, technological level and so on. Changyu wines are classified as selected grade, treasured grade, special grade and premium grade after full consideration of comprehensive factors influencing wine quality, for only by such a way superior and inferior wine can be scientifically and objectively assessed. A bottle of fine wine should be able to survive from the test of six items, namely, grape variety, ecological conditions (climate and soil), brewing techniques, oak-barrel aging, blending and bottle storage and then the most reasonable assessment can be obtained. Production year is only one factor influencing the quality of wines. US consulate. During his stay in Yantai, he drank the delicate wine of Changyu for the first time and wrote the line that “I was deeply intoxicated in Changyu wine and transplanted peony from Fengtai. I wrote the line during my dodging from scoundrels; drinking Changyu wine made me forget my confronting of danger and feel divorcing myself from wrangles for disengagement.” Ten years later (1927), Kang visited Yantai for the second time before his departure from his life and lodged at Dongshan Vineyard Villa. He was warmly entertained by principals of Changyu, for which he wrote a poem echoing to the poem he did ten years ago that “I was slightly intoxicated in Changyu wine and transplanted peony from Fengtai. I wrote this new poem after reading Lotus Sutra and I am very pleasant and delighted since where I visit becomes my home”. This may be his last poem left for us before his eternal rest.