Abstract: Singapore Maritime Museum was constructed on the reclaimed land by the sea.There was a big construction risk in the stage of foundation excavation.Inappropriate construction control measures would lead to large deformation of the support structure for excavation and groundwater flowing into the excavation.So, it was necessary to carry out information construction with the centre of risk control during the whole process of deep excavation． Referring to this project, it is introduced in detail the successful application of information monitoring technology in the project from the aspects of horizontal displacement of the sea walls, horizontal deformation of excavation lateral soil, the water level of the soil and the environmental vibration of construction site．