Abstract: In this paper, properties of the Estrone (E1) adsorption in the soil affected by factors including equilibrium time, temperature, pH value, ionic strength and soil particle sizes were studied. The results showed that the equilibrium time of isothermal adsorption for E1in the soil was about for 0.5h. At the temperature of 10,0and 30℃, K_f (absorption coefficients) for Estrone (E1) in the soil were 24.72,4.18and 9.39, and the K_d (partition coefficients) were 34.79,4.15and 13.51respectively. As temperature arising, Estrone (E1) adsorptions in the soil dramatically decreased. With increase of pH value, Estrone adsorptions in the soil decreased first (pH=3.0-6.0), and then remained stable (pH=>6.0-9.0), and finally decreased again (pH=>9.0-11.0). With increase of the ionic strength, Estrone adsorptions in the soil firstly increased significantly (ionic strength changed from 0.005to 0.1mol/L), and then remained stable (ionic strength were bigger than 0.1mol/L). In addition, K_f of the Estrone in sand, silt and clay were 5.17,2.79and 25.22, while K_d were 6.80,6.11and 39.95respectively. With decrease of soil particle sizes its adsorption effect on Estrone significantly increased.