The gravity type wharf mainly relies on its own gravity against sliding and overturning of the building. The wharf structural subsidence and displacement are large and with a long duration, which will directly affect the application effect after completion of the terminal. Combining with actual construction management experience of a project, we probe into the way of controlling and decreasing the gravity wharf structural subsidence displacement from aspects of the observation and analysis of actual construction guidance, so as to improve the operation effect of port after completion and prolong the service life. The scheme and construction analysis guidance has resulted obvious effect in actual construction, and achieved a certain economic benefit, providing reference for similar project construction.