As a flood control building，the embankment can easily lead to dangerous sections due to the harsh surrounding environment.In view of the dangerous sections of the Xinyi River embankment，relevant geological and hydrological data are collected.In combination with on-site investigations，the causes of the dangerous sections of the Xinyi River are systematically analyzed，and control measures for different dangerous sections are proposed.The results show that：1）The sudden rise and fall of water level in the flood season is the important external cause for the dangerous sections of the Xinyi River，and the strong permeability of the embankment foundation and the uneven soil quality are the important internal causes.2）According to these causes，the dangerous sections of the Xinyi River can be divided into three types.3）Different control measures are proposed in light of different types of dangerous sections，and the correctness of the control plan is demonstrated by the Shawan dangerous section.