Objective:To establish chemical fingerprint and pattern recognition of total statistical moment method,cluster analysis and principal component analysis (PCA)for Cinnamomi Ramulus,and provide a method for quality control of Cinnamomi Ramulus.Methods:Chemical fingerprint of eleven batches of Cinnamomi Ramulus were established by HPLC,and total statistical molnent parameters,under cunrve of total quantum (AUCT),area under curve of total quantum perweight (AUCPWT),mean chromatographic retention time of total quantum(MCRTT),variance of chromatograp...