高磁損耗納米晶顆粒是新型電磁波吸收材料的重要研究方向。該文以納米晶結構為基礎，從磁性納米晶交換耦合作用和納米小尺寸表面效應出發，歸納了納米晶顆粒靜態磁化特性，以及在動態磁化機制方面展開的探索工作，介紹了國內外在該領域的最新研究成果并結合本實驗室的實驗結果進行討論，最后提出了研究中存在的一些問題以及今后該領域的發

High-permeability nanocrystalline particle is one of the most important approaches to develop the new generation of electromagnetic wave absorbing materials. Based on the exchange coupling, finite-size and surface effect of nanostructure, the static magnetic characterizations and dynamic magnetization mechanism of high-permeability nanocrystalline particles are introduced in this paper. The experimental results are discussed in combination with the recent research development in this field promoted by the local and abroad researchers. Finally, the problems in present work and developing trends of future research were submitted.