Aluminium Alloy Metal Matrix Composites (AAMMCs) are broadly used for various applications such as aerospace, military, marine, transport and automobile applications. Aluminium alloys are not sufficient for satisfying the needs of the fastest growing industries. The more combination of properties are needed for fulfil the need of fastest growing countries. The input process parameters of fabrication methods of composites are more important in connection with mechanical and tribological properties. In this research, optimization on stir casting input process parameters of AA7050/4wt.%WC composite was done by utilizing the Taguchi technique. The melting temperature (650, 700 and 750 °C), stirring speed (150, 200 and 250 rpm) and stirring duration (10, 20 and 30 min)were selected as input parameters to optimize the stir casting input process parameters. The chosen response parameter for the investigation was wear loss. The wear test was conducted by using pin on disc setup at the condition of 2500 m sliding distance, 25 N applied load and 1.5 m/s sliding velocity. The optimized input process parameters of stir casting is high level of melting temperature (750 °C), low level of stirring speed (150 rpm) and low level of stirring duration (10 min). The increasing of melting temperature decreases the wear loss and increasing of stirring duration and stirring speed enhances the wear loss due to accumulation of reinforcements in the matrix AA7050. The contribution percentage of melting temperature, stirring speed and stirring duration is 81.02 %, 12.4 % and 6.4 % respectively. The high strength MgZn2 precipitate was formed while using optimized stirring temperature, stirring duration and stirring speed and it was confirmed by XRD. The SEM image of AA7050/4wt.%WC confirmed that uniform distribution of WC in matrix AA7050 material and it caused to offer higher wear resistance. The obtained low wear loss for confirmation test specimen is 16 mg.