Summer solstice has high temperatures and often encounters drought. The roots of tea trees are limited by water conditions and have weak absorption capacity. Roots have poor fertilization effects. If the leaves are sprayed during the growth of summer tea, it will not only increase the yield of tea by about 10%, but also enhance the tenderness of new shoots, which is beneficial to the improvement of summer tea quality. The method is: using ammonium sulfate 1%, urea 0.5%-1%. Superphosphate 1%-2%, potassium sulfate 0.5%--1%. The application time is exuberant with new shoots, cloudy days when one bud and one leaf are unfolding, evening or morning. One hundred to twenty pounds of fertilizer solution per acre is sprayed once every three to six days. When spraying, both front and back sides must be sprayed at the same time, especially the back of the leaves must be sprayed. During the spraying process, high temperature exposure should be avoided, and the fertilizer should be prevented from being washed and brewed on rainy days. While spraying fertilizer on the leaves, it is still necessary to strengthen the top dressing of tea plants in order to achieve mutual promotion.