A new method for building near-infrared spectroscopy(NIRS) calibration model using support vector regression(SVR) was proposed. After NIRS data of the extracting solution of Panax notoginseng herb were processed with pretreatment and principal component analysis, NIRS calibration models of ginsenoside R g1, R b1, R d and panax notoginseng saponins(PNS) were built by using SVR. The reference measurements of ginsenoside were performed by HPLC method for ginsenoside R g1, R b1, R d and colourimet...