Abstract: In this paper, according to the geotechnical literature at home and abroad, the observed lateral soil displacement behaviour beneath embankments on soft clay is initially summarised. The field observation and laboratory test data, and various design methods of piles subjected to lateral soil displacement are subsequently discussed. The test and calculation results of stabilizing piles, and the interaction between the pile supported pier and the bank slope are also described. The existing problems and future research topics in the field are finally presented.