从沿磁力线的等离子体电流与粒子径向输运相关的新经典ＭＨＤ型的广义欧姆定律出发，提出了分析反常输运与非线性自持磁岛的自洽理论模型，基于该模型导出了反常扩散系数及反常电子热导。结果表明，非线性磁岛链可由磁岛调制的反常输运维持，反过来又通过磁岛短路效应维持反常输运。 Starting from the generalized Ohm’s law of the new classical MHD type, which is related to the plasma current and particle radial transport along the magnetic line, a self-consistent theoretical model for the analysis of anomalous transport and nonlinear self-sustaining magnetic islands is proposed. Based on the model, anomalous diffusion Coefficient and Anomalous Electronic Thermal Conductivity. The results show that the non-linear magnetic island chain can be maintained by the magnetic island modulation anomalous transport, which in turn can maintain the abnormal transport through the magnetic island short-circuit effect.