NdBa2Cu3O7-δ(NdBaCuO) powder was prepared by solid phase method,and metal silver powder was added to NdBaCuO powder with different mass fraction to prepare Ag/NdBaCuO composites by pressing and sintering.The sample phase was analyzed by X-ray analyzer.The microstructure and element composition of the samples were analyzed by scan electron microscope and metallographic microscope and X-ray energy spectrometer.The friction properties of the samples against steel were measured by friction tester.The analysis results of phase and mechanical properties show that there is no chemical reaction between NdBaCuO and silver,and the microstructure of NdBaCuO does not changed after adding silver.The silver distributed in the NdBaCuO substrate increases the density of the Ag/NdBaCuO composite.Friction tests show silver in the Ag/NdBaCuO composite acts as a solid lubricant,which reduces the friction and wear of Ag/NdBaCuO composite,and improves the wear resistance of Ag/NdBaCuO composite