This paper introduces the seismic design method of the sheet-pile quay in the United State and clarifies the difference between it and that stipulated in the Chinese code.It is indicated that great differences between the seismic design methods of sheet-pile quay for the two countries lie in the definition of the seismic coefficient,determination of dynamic earth pressure and its position,consideration of water state for the submerged backfill,computation of internal bending moment of sheet-pile wall and pull force of tie rod,as well as the quantification of soil parameters and safety factors.