Characteristic chromatogram of Phenolic Components in Panax notoginseng was established by HPLC-PDA method and 9 featured peaks were screened. Their quality correlation was represented by relative retention schedule. Contents of P-hydroxybenzoic acid, quercetin, kaempferol, isorhamnetin and total phenols were determined, taking p-hydroxybenzoic acid as the control content agent. The total phenolic content of Panax notoginseng was determined by spectrophotometry. Quality representation was made with the contents of phenols in Panax notoginseng and their relative ratio. Correlation analysis of content of each phenol in Panax notoginseng was performed to summarize correlation and quality distribution rules among components in Panax notoginseng. The correlation between different batches of medicinal materials and referential materials which had pharmacodynamics validation was analyzed. The optimal Panax notoginseng could be selected based on the results of correlation analysis. This method can fully and accurately control and evaluate the quality of Panax notoginseng.