The picking of fresh leaves is not only related to the quality, yield, and economic benefits of the finished tea, but also to the growth and economic life of the tea tree. Therefore, in the tea production process, the picking of fresh tea is of special importance, and the picking must be timely.

Chinese tea farmers have a proverb that three days early harvest is a treasure, and three days late harvest is grass. That is to say, the tea leaves must be picked in time. The finished tea produced by the early leaves is of high quality, and the later the fresh tea is made, the worse the quality of the finished tea. In addition, timely picking can promote the timely germination of new tea leaves, shorten the interval, greatly increase the frequency of tea picking, achieve the effect of increasing production and income, and can also reduce the pests and diseases of tea leaves.