Abstract: A MATZHU is prepared by using leaves of Gramineae (Graminae) and Bambusoideae plant as raw materials. The MATZHU has a stable emerald color and an average powder particle size of 800 to 10,000 meshes. The MATZHU also has a total amount of dietary fiber of ?60%, a content of lignin of ?20% and a content of minerals of ?7%. The MATZHU includes at least three or more bamboo leaf characteristic components, such as orientin, isoorientin, vitexin, isovitexin, adenosine, ?-hydroxylysine and p-coumaric acid. The method for the MATZHU preparation includes, in turn, performing blanching and color protection, drying and superfine grinding the raw materials. By utilizing the thermal stability and the light stability of the MATZHU, the MATZHU may be used as a raw food material, a functional ingredient, or a dietary supplement.