The invention discloses a sharing method of warning data in a province and region integrated scheduling automation system. The method comprises the following steps of: 1) after a province scheduling automation system warns a sharing client to receive a station sharing request sent by an on-demand model sharing tool, positioning a real-time warning sharing service of a service end of a region scheduling automation system through a service bus and sending a warning sharing request to a warning sharing service end of the region scheduling automation system; 2) maintaining a real-time warning array by the warning sharing service end of the region scheduling automation system and receiving and preserving all warnings; sending real-time warning data and response reports of the requested station in request information to a warning sharing client of the province scheduling automation system; and 3) after the warning sharing client receives the warning data sent which is sent by the service end, analyzing the data and then supplying the analyzed data to a warning window program to use. According to the steps of the sharing method provided by the invention, the real-time warning information of the station at a region scheduling side can be seen by the province scheduling in the first place.