Qimen tea garden is mostly distributed in alluvial land and fan land on the water-bearing coast. Tea tree lives by the water, with deep soil layer, fertile soil, warm and humid climate and abundant rainfall. Qimen production area is characterized by high mountains, deep valleys, many clouds, high humidity and lush trees, and has the microclimate characteristics of "fog everywhere in the morning and evening on sunny days, and clouds all over the mountains on rainy days". Qimen Tea Garden is the largest organic tea base in China, and has been certified by the European Union. The river fog is diffuse, and the tall trees block the sun, which causes the strange production environment of Qimen tea. The mountain wind goes downstream, and the temperature difference between day and night is large. The quality and durability of Qimen tea can be bred in a silent place.