Pipe network safety risk level assessment method and device, electronic equipment and storage medium

The invention provides a pipe network safety risk grade assessment method and device, electronic equipment and a storage medium, and relates to the technical field of municipal water supply pipeline assessment. The method comprises the steps of obtaining a target evaluation index; determining subjective weights of the target evaluation indexes based on a fuzzy analytic hierarchy process; determining objective weights of the target evaluation indexes based on a rough set theory; determining a combined weight based on a preset scale factor, the subjective weight and the objective weight; determining a membership matrix based on the membership value of the target evaluation index; determining a security risk index based on the combined weight, the membership matrix and a preset security risk assignment; determining a pipe network safety risk level based on the safety risk index and a preset safety risk assessment range; the evaluation indexes in the pipe network safety risk level evaluation process are subjected