The friction and wear behaviour of particulate reinforced aluminium alloy composites produced by a stir casting process technique were investigated. A pin-on-disc type apparatus was employed for determining the sliding wear rate and the coefficient of friction in Composite samples of different volume fraction respectively 97:03 and 94:06. The effects of weight loss and wear rate against applied dry friction load were studied in the composite samples. From this effect of different volume fraction of fly ash particulate in Aluminium Matrix Material samples were evaluated. The wear rates of the composites were considerably less than that of the aluminium alloy at all applied loads. However the friction coefficients of the composites were found to be higher than that of the matrix alloy. Scanning Electron Microscopy (SEM) of the worn surfaces revealed that particulate micro fracture was the predominant mechanism of wear of the composites.