The selection of structural deformation control,foundation bearing capacity,construction process and other factors is often the key to newly-built revetments in backfill engineering of deep soft soil foundation.Taking the expansion project of Macao International Airport as an example,in view of airport’s special construction conditions,such as deep soft soil,complex environmental conditions,and time limit and height restriction,we carry out this research on the core technologies about revetment structure selection,structural calculation and construction process selection.Then we propose several structural schemes,for example,high-rise pile caps with front sheet pile and offside pile foundation,which can solve the problems of revetment deformation control,foundation bearing capacity and construction difficulties in the situations like deep soft soil,complex environment or complicated construction conditions.The paper can provide reference for similar projects.