To explore the soil compacting effect of TC pile with disc,this paper conducts a test on soft soil penetrating of TC pile with disc in Shanghai,by measuring the pore pressure,earth pressure,lateral displacement,and land upheaval around the test pile. The test shows that the excess pore pressure increasingly become deeper from the up to the bottom and dissipates quickly after pulling out the sinking pile,meanwhile,the earth pressure also increases with depth,however decreases along the radial direction. We also find that the soil moves outward during the pile sinking period while moves inward after pulling out the pile,at the same time,the ground sinks with a decreasing speed as the radial direction increases.