Ma Tou Yan cinnamon, also known as the general term for cinnamon produced in Ma Tou Yan Mountain Farm. There are many mountain farms in Matou Rock, including Kaishanping, Leishiyan, Taoshuke, and Mao'er Stone. For convenience, they are collectively referred to as Matou Rock Cinnamon.

Ma Tou Yan Cinnamon is an outstanding representative among many Wuyi rock teas, recognized by tea enthusiasts

Similar trees are also found in areas such as the original horse pillow peak and Huiyuan. It has been cultivated for more than 100 years. In 1985, it was recognized as a provincial variety by Fujian Crop Variety Approval Committee. Now it has become one of the main tea varieties planted in Mount Wuyi, and has been introduced both inside and outside the province.
The plant is still tall, with a semi open posture and dense branches. The leaves are horizontally attached. The leaves are 7.1cm long and oval in shape, with a dark green and glossy color. The leaves have a flat surface, a folded body, blunt and pointed tips, shallow, blunt and sparse teeth, thick and soft leaves, purple green buds, and few hairs. The diameter of the corolla is 3.0cm, with 7 petals. Style 3-lobed.
The sprouts and leaves have strong fertility, dense germination, and strong tenderness. The suitable harvest period for spring tea is in early May, making oolong tea. It has excellent quality, tight strands, dark and moist sand green color, bright red dots, and a rich and sharp aroma resembling cinnamon. The taste is mellow and sweet, and the "rock charm" is obvious. Strong cold and drought resistance, strong cutting reproduction ability, and high survival rate.