Abstract: In the soft clay ground of Zhejiang Province in China,the settlement reducing piles are often adopted in the foundation treatment of multi-storey buildings.To analyze the working mechanism of settlement reducing piles in soft soil ground,an engineering application case is studied.On the basis of the tests on stress and settlement,some laws on the stress ratio of pile to soil and load transfer characteristics are summarized.The test results show that the soil stress distribution under the pile cap is a parabolic curve,and the soil stress ratio varies from 14.6% to 18.1%.These results can offer theoretical reference and help to analyze the interaction of pile and soil.And it is concluded that the settlement reducing pile foundation has wide prospects and preferable benefits socially and economically.