Taking the 6-meter-deep waterway regulation project from Wuhan to Anqing section of the Yangtze River main line as the research object,we carry out a comparative analysis of the effects,advantages and disadvantages of different detection technologies for underwater paving projects,and evaluate the detection results obtained by corresponding technical means,so as to obtain a detection method that quickly conforms to the characteristics of the construction and ensure the construction quality,ad provide a technical method and acceptance basis for the underwater paving construction.