Drainage well overflow early warning method and device, storage medium and electronic equipment

The invention discloses a drainage well overflow early warning method and device, a storage medium and electronic equipment. The drainage well overflow early warning method comprises the steps of obtaining historical data; screening out to-be-fitted data meeting conditions from the historical data by adopting a data self-checking method; fitting the to-be-fitted data to obtain a first mapping relation between the rainfall intensity and the highest liquid level value of the drainage well; the maximum allowable liquid level value of the drainage well is obtained, and a rainfall intensity threshold value is obtained through calculation according to the first mapping relation and the maximum allowable liquid level value; and obtaining rainfall intensity prediction data, and sending out overflow early warning information when the rainfall intensity prediction data is greater than a rainfall intensity threshold value. According to the drainage well overflow early warning method, an overflow event can be early warne