基于电磁场的多尺度理论，研究了各向异性介质球内、外电场的规律，导出了各向异性目标散射场的表达式，得到了各向异性介质目标散射振幅、散射截面等的解析表达式，并对其正确性进行了检验.仿真结果表明：各向异性介质球的散射具有偶极辐射的特点，介电常量越大，产生的偶极矩也愈大，散射也越强.其结果可为各向异性目标监测、各向异性光散射研究等提供理论支持.

Based on the scales theory of electromagnetic wave,the law of electric field inside and outside an anisotropic medium sphere is researched.The formula of scattering field from the anisotropic targets is derived.The differential scattering cross section and the scattering amplitude etc.for the anisotropic spherical target are presented.The correctness of the obtained results is tested.Simulation results show that the scattering of an anisotropic sphere has the property of a dipole radiation.The bigger the dielectric constant is,the stronger the dipole and the scattering are.These results provide a theoretical basis for the light scattering from an anisotropic target and the identification of anisotropic targets.