Abstract: An analysis of the three aspects of waterway processes near the Hong Kong-Zhuhai-Macao Bridge is given in this paper.Firstly,in order to confirm the shoal and trough evolution characteristics and trends near the bridge,the paper focuses on basic features such as the runoff,sediment,tide level and tidal current.Secondly,based on the measured data of the test trench near the bridge,the silting intensity and slope change in different seasons are found.Finally,based on the comparison of the cross-section and volume changes of different periods of the channels near the bridge as well as the analysis of the channel evolution characteristics and development trend,an conclusion is made that each channel is in a relatively stable state.