White nephrites of different origins are quite similar to each other in main mineral composition and structure, but their values vary greatly. Terahertz time-domain spectroscopy (THz-TDS) technology can not only provide information on chemical composition of substances but also provide spectral fingerprint information related to structure and conformation for substances identification. In this study, THz-TDS was used to test the white nephrite from four producing areas, i.e., Xinjiang, South Korea, Qinghai and Russia, whose refractive indexes and absorption coefficients in the frequency domain of 0.2～2.5 THz were obtained after fast Fourier transform (FFT) and calculation followed by Savitzky-Golay (S-G) smoothing. The results showed that the refractive indexes of the white nephrites from Xinjiang, South Korea, Qinghai, Russian were different. There was a small characteristic absorption at about 2.0 THz existing in the terahertz characteristics absorption spectra of white nephrites from Xinjiang, Qinghai, while a broad absorption envelope in 1.5～2.0 THz b, was detected for the white nephrites from Korea, Russia. These results provide basic data for further development of the origin identification method of white nephrites based on terahertz time domain spectroscopy.