Abstract: The wettability and soil adhesion performance of glass bead reinforced UHMWPE matrix composite were investigated. The results show that the increase of filler volume leads to the increase of the soiladhesion and wettability. When the filler volume is less than 9%, it will not affect the soil adhesionreducing performance obviously. The interaction of soilwaterspecimen surface was also analyzed. It is concluded that the reduction of soil adhesion of the glass bead/UHMWPE composite is caused mainly by its hydrophobic and chemical nonsmooth effects.