The poor interfacial interaction between magnetic particles, such as carbonyl iron particles (CIP), and rubber matrix results in deterioration of mechanical properties in magneto-rheological elastomers (MREs). We introduced ZnO filled MREs based on ethylene acrylic elastomer (AEM) to improve interfacial interaction of CIP and rubber matrix, due to ZnO catalyzed reaction between carbonyl and amino group. The mechanical properties of MREs were improved because of improved interfacial interaction. In addition, the magneto-induced properties of MREs were enhanced.