Enhancing the electrical property of absorbing structure stealth materials is closely related to its internal absorbing component , the study found that magnetic ifber shape anisotropy and good electromagnetic properties, absorbing structure combined with stealth materials can be realized with a certain stealth materials absorbing structure and mechanical properties of absorbing capability.Radar absorbing material performance mainly depends on the characteristics of the loss of radar wave absorber. We ifrst took advantage of ripe simulation software, CST, to simulate the interaction between radar wave and magnetic conductive ifber, as a result, we found that the scattering effect is more obvious with the increase of the frequency of the incident electromagnetic wave. What is more, using equivalent circuit model to analyze, we have derived mathematical formula of electromagnetic parameters which is about low concentration of magnetic ifber-iflled composite materials. While completing the inlfuence of ifber parameters on the electrical properties of the material, it is gained the inlfuence of magnetic ifber parameters, that is ifber cable degrees (diameter, aspect ratio) will ifrst affect the polarization factor, Thus affecting the effective permittivity; When the polarization factor of a small to a certain extent, The equivalent dielectric constant flattening; In a word, what ultimately affect the absorbing performance of composite absorbing materials is the degree of ifber cable, the electrical conductivity and concentration.%吸波结构隐身材料电性能提升与其内部的吸波成分关系密切，研究发现，磁性纤维具有形状各向异性及良好电磁性能，与吸波结构隐身材料结合可形成具有一定吸波能力及力学性能的吸波结构隐身材料。雷达吸波材料性能主要依赖于其中的雷达波吸收剂损耗特性。首先利用成熟的CST仿真软件针对磁性纤维与雷达波相互作用开展了仿真研究，验证了磁性纤维散射具有显著效应。通过等效电路模拟及电磁理论分析，完成了低浓度磁性纤维吸波结构隐身材料的电磁参数数学模型的建立及验证。同时完成了纤维参数对材料电性能的影响研究，获得了其磁性纤维参数的影响规律：纤维线度（直径、长径比）首先影响极化因子，从而影响等效介电常数；当极化因子小到一定程度后，其等效介电常数变化趋于平坦；纤维线度、电导率、浓度最终影响吸波结构隐身材料的吸波性能。
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