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Using principal component analysis, the 27 factors of 38 kinds of blended oils were analyzed, and the main factors affecting the rankingof blended oil products were obtained.According to the analysis results,in the formulation design of the blending oil, the raw material oil with higher oleic acid content such as camellia seed oil can be added as the preferred raw material oil; in view of the balanced demand of dietary fatty acids, it is possible to strengthen the addition of DHA and EPA This study provides the basis for the selection of base oils in blending oil formulation design.