The main concrete structure of the high-pile beam slab wharf is generally composed of pile foundation,beam(cast-in-place),longitudinal beam system(cast-in-place or pre-fabricated installation),panel(cast-in-place or pre-fabricated installation),surface layer(cast-in-place),etc.The upper load of the wharf is transmitted from the beam to the pile foundation.Therefore,the quality requirement to the beam is very high.The cast-in-place beam is generally located in the water level fluctuation zone,which is seriously affected by the tide.The construction on site is difficult and the construction quality is uncontrollable.Taking the SGPJB Jawa 7 Power Plant project in Indonesia as an example,this paper introduces the construction of the lower beam of the high-pile wharf under the suspended bottom mold method,which effectively reduces the impact of the tide on the beam construction.The site construction is convenient and the construction quality of the beam is guaranteed.Meanwhile,good economic and social benefits are achieved.