The change of water level is an important factor to affect the stability of dikes.In order to quantitatively analyze the stability of the Chitiangang dikes' waterward slopes under different water level changes,finite element calculation of dike stability was conducted for the waterward slope with the consideration of the influence of water levels'change rates.It is instructional to analyze the change rules of Chitiangang dikes under different water level change rates,embankment slope ratios,and erosion depths for the optimization of the current dike structure and the selection of reinforcement measures for Chitiangang dike.