Purpose <p>Rapid industrial growth and increasing demand for petroleum have led to a substantial accumulation of organic-contaminated soil in coastal and riverside environments. This organic-contaminated soil typically contains two or more immiscible fluids. In this study, the deformation behavior of soil with non-miscible fluids will studied.</p> Methods <p>A testing platform was established to test the three-dimensional surface deformation and soil weight, and a series of soil specimen with different diesel content, water content and dry density (<i>ρ</i>_d) were tested using this platform. On this basis, the sensitivity of water content, diesel content, and <i>ρ</i>_d on the soil deformations and water evolution were analyzed.</p> Results <p>The results show that, the horizontal and vertical deformation of diesel contaminated soil increase first and then tend to stabilize with the increase of time. With the increase of <i>ρ</i>_d and diesel content, the horizontal deformation will increase and the vertical deformation will decrease along the water evaporation process.</p> Conclusion <p>The water content, diesel content, and <i>ρ</i>_d has a dynamic influence on the soil deformation, and soil <i>ρ</i>_d is more sensitivity than water content and diesel content on the soil deformation.</p>