Customer life cycle early warning method and device and storage medium

The invention discloses a customer life cycle early warning method and device and a storage medium, and the method comprises the steps: dividing a time window based on customer business data, and obtaining an early warning cycle window; wherein the early warning period window comprises an observation period, a stable period, an interval period and a performance period; according to historical customer business data, determining a background prediction data range to obtain a customer loss probability; determining customer service feature dimensions according to the customer service data, and performing service dimension reduction screening on the service feature dimensions to determine to-be-analyzed service feature dimensions and first service feature variables corresponding to the to-be-analyzed service feature dimensions; and inputting the first business characteristic variable into a preset customer loss judgment model group to obtain a customer loss judgment result. By means of the method, the technical p