Method, device and equipment for identifying key area of external water invasion, and storage medium

The invention provides an external water invasion key area identification method and device, equipment and a storage medium, and the method comprises the steps: dividing a sewage system into a plurality of sewage drainage subareas, and constructing a water quality and water quantity balance model comprising a plurality of sewage pipe sections; on the basis of the pipe section detection information and a water quality and water quantity balance model, the pipe section invasion water quantity of the sewage pipe section is calculated; determining subarea invasion external water quantity, unit invasion external water quantity and municipal invasion external water quantity based on the pipe section invasion external water quantity; determining a plurality of priority checking partitions based on the numerical sorting of the intruded external water volume; and determining the at least one priority investigation subarea as an external water invasion key area based on an on-site investigation result. According to the