Relationship between contents of soil nutrient elements (N,P and K) and laboratory VNIR (visible-near infrared) spectra of the soil is analyzed in this article.Some spectra are pre-processed before calculation of four spectral indices,including inverse spectra (1/R),first derivative reflectance spectra (FDR),inverse-log spectra (log (1/R)) and Depth.Based on the partial least square regression method,statistical relationships between these indices and contents of soil nutrient elements are established by calibration set.Then the regression model is verified by test set.The results showed that VNIR (visible 2 near infrared) spectra of soil are potentially useful for rapid estimation of content of the nutrient elements in the soil.