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The climatological quality indices are designed to support the quality certification of spring Longjing Tea. Considering the close connection between tea quality and climate conditions, the relationship between climate conditions during the growth period of the buds and leaves of tea plants, and the quality, color, taste of the tea is established using agrometeorological technology. Climatological quality certification indices are designed for spring Longjing Tea by using Wuniuzao, Longjing 43, and Jiukeng tea plants. Climatological quality during the growth period of the buds and leaves is classified into four types: superfine, fine, good, and ordinary, as a basis for the certification of climatological quality of Longjing Tea. As a third party independent of the tea producers, dealers, and consumers, the Meteorological Department is acceptable by the three relevant parties to conduct the certification of climatological quality.