The water resources system has the characteristics of dynamism and complexity. In the process of measuring regional water resources carrying capacity

there is often a problem of low measurement accuracy due to incomplete measurement indicators. Therefore

a method for measuring regional water resources carrying capacity based on improved IAVOA-BP algorithm is proposed. Considering the impact of various factors on water resources carrying capacity

a water resources carrying capacity indicator system is constructed

and the selected measurement indicators are standardized. With the improved IAVOA-BP algorithm

the relative importance and information entropy of different measurement indicators are calculated

and the weight values of the measurement indicators are obtained. The water resources carrying capacity value is calculated by combining the obstacle factors of water resources. The results indicate that the regional water resources carrying capacity method based on the improved IAVOA-BP algorithm has high measurement accuracy and reliable measurement results in practical applications.