We will present a uniqueness results on the Calderon problem for a three dimensional anisotropic elastic medium in the static case. More precisely we will show the uniqueness for identifying the elasticity tensor from the localized Dirichlet to Neumann map under the assumption that the elasticity tensor is piecewise homogeneous with known curved interfaces. We will also touch the question about removing the assumption that the curved interfaces are known and generalization to piecewise analytic anisotropic tensor.海报