Abstract: The honeycomb preforms were prepared by vacuum sintering the mixture of ZrO₂ toughened Al₂O₃ ceramic particles (ZTA_p) of 1-2 mm, high chromium alloy powder and binder. ZTA_p reinforced high chromium cast iron composites were then prepared by pouring high chromium cast iron. The interface microstructure and phase composition of the composites were analyzed by SEM, EDS and XRD. The wear resistance of the composite was evaluated by three-body abrasive wear test. The results show that the matrix of sintered high chromium cast iron is remelted in the process of casting and is metallurgical bonded with cast high chromium cast iron matrix. The interface between ZTA_p and metal matrix is compact, and there are no defects such as cracks and pores. The three-body abrasive wear resistance of the composites is more than 3 times of that of high chromium cast iron. The composites are applied to the preparation of grinding roller parts. After 5 000 h of service, the wear loss of the columnar zone and composite zone in the direction of grinding roller radius are 8.2 mm and 5.9 mm, respectively, and the expected service life can be more than twice that of the high chromium cast iron grinding roller.