Abstract
Using the harmonic map theory,we study the geometry of conformal minimal two-spheres immersed in Q6,or a real Grassmannian manifold G(2,8;R)equivalently.Then we classify the linearly full reducible conformal minimal immersions with constant Gaussian curva-ture from S2 to Q6 under some conditions.We also construct specific examples of non-congruent two-spheres with the same Gaussian curvature,up to SO(8)-equivalence,for each case.