Abstract: Nano-SiC_p/Zn-Al composites with 0.1mass% SiC_p were prepared by direct smelting and by applying mechanical stirring, ultrasonic processing, and simultaneous mechanical stirring and ultrasonic processing during smelting, respectively. The effects of smelting process on the microstructure, microhardness and friction and wear properties were studied. The results show that the microstructures of samples obtained by different smelting processes were all mainly composed of α(Al,Zn) Al-rich phase and η(Al,Zn) Zn-rich phase, and the microhardness had little difference. After direct smelting and smelting with mechanical stirring, ultrasonic processing, simultaneous mechanical stirring and ultrasonic processing, the dispersion effect of SiC_p in the composite was successively enhanced, the grain size became more uniform in turn, and the average friction factor was 0.38, 0.33, 0.32, 0.31, respectively. Under conditions of small-load low-frequency, small-load high-frequency, medium-load high-frequency, large-load high-frequency, the wear loss of the sample obtained by applying mechanical stirring and ultrasonic processing during smelting was reduced by 77.4%, 52.9%, 43.3% and 52.5%, respectively, comparing with that by the direct smelting. The wear mechanisms were all adhesive wear.