Disclosed is a stevioside A glycoside crystal form 7, the structure whereof is represented by the formula I. The X-ray powder diffraction (XRPD) figure of the crystal form 7 has the following characteristic peaks at the angles of 2θ±0.1 degrees: 4.80, 5.48, 8.42, 9.27, 11.06, 11.27, 11.86, 12.62, 13.59, 14.20, 15.07, 15.44, 17.05, 17.72, 18.13, 18.62, 19.36, 21.26, 21.95, 22.75, 23.59, 24.14, 24.73, 25.01, 25.54, 25.98, and 26.56.Linvention concerne une forme cristalline 7 de glycoside de stévioside A dont la structure est représentée par la formule I. La figure du dérivé de rayons X sur poudres (XRPD) de la forme cristalline 7 présente les pics caractéristiques suivants aux angles de 2θ ± 0.1 degrés : 4.80, 5.48, 8.42, 9.27, 11.06, 11.27, 11.86, 12.62, 13.59, 14.20, 15.07, 15.44, 17.05, 17.72, 18.13, 18.62, 19.36, 21.26, 21.95, 22.75, 23.59, 24.14, 24.73, 25.01, 25.54, 25.98 et 26.56.
