Assessment of soil fertility quality was an effective way to evaluate direct or indirect impacts of artificial land managements on the soils.This paper attempted to present an integrated evaluation of Hong Kong soil fertility quality with improved analytic hierarchy process (AHP) since such study had never been carried out on the soils in Hong Kong before.Soil samples were collected from 51 representative soil profiles indicative of varied soil types throughout Hong Kong,and 10 items of soil properties,including pH,soil organic matter,soil texture etc.,were determined.Results indicate that more than half of the soil samples were below the middle level in soil fertility,while those from farmlands was relatively better and higher than 0.7 in soil fertility quality index(FI),which was applied to quantify soil fertility in Hong Kong.The low soil fertility quality is attributed mainly to the strong acidity and low contents of total phosphorus and rapid available phosphorus of the soils.Besides,mountain fire and soil erosion contribute to a certain extent to degradation of the soil quality.Therefore,it is suggested more efforts be devoted to protection of vegetation and conservation of soil and water for the sake of improvement of soil quality.