The effect of abattoir effluent on the physical and chemical properties of soils was investigated under natural environment in pot experiment at Ambrose Alli University Teaching and Research farm, Ekpoma, Nigeria. A composite soil sample was used in the experiment. The soil was treated to seven rates of abattoir effluent (viz. 0, 25, 50, 100, 125 and 150 ml/kg soil). The treatments were laid out in randomised complete block design replicated three times. The physical and chemical properties of the soil were determined before pollution and at the end of the experiment, 5 weeks after pollution. Results obtained revealed that abattoir effluent increased pH, available P and micronutrients (Zn, Mn and Fe) significantly in the soil whilst exchangeable cations were reduced significantly when compared to the control.