Phase relations in the ternary oxide system V2O5-Cr2O3-alpha-Sb2O4 in the solid state in the atmosphere of air have been investigated by using the XRD, DTA/TG and IRS methods. Obtained results have shown that in the system the compound CrSbVO6 is formed. This compound has been obtained both from oxides and from a mixture comprising CrSbO4, CrVO4 and SbVO5 as well as from mixtures: CrSbO4/V2O5, CrVO4/alpha-Sb2O4 and SbVO5/Cr2O3. A Solid product of incongruent melting of CrSbVO6 at similar to 1300 degrees C is Cr2O3. CrSbVO6 crystallizes m the tetragonal system and its calculated unit cell parameters amount to: a = b = 0.45719(12) nm, c = 0.30282(8) nm, Z = 2. The obtained results have allowed us also to divide the investigated system V2O5-Cr2O3-alpha-Sb2O4 into seven subsidiary subsystems.nd to determine temperatures and components concentration range in which CrSbVO6 remains at equilibrium in the solid state with other phases formed in corresponding binary systems.