Monitoring data return method and device

The invention relates to a monitoring data return method and device. The method comprises the following steps: acquiring target trajectory data of an operation machine; if the target trajectory data of the operation machine characterizes that the trajectory of the operation machine passes through the boundary lines of more than two target administrative regions, based on the target trajectory data of the operation machine, determining the working administrative region of the operation machine corresponding to the target trajectory data from the more than two target administrative regions; if the working administrative region is different from the administrative region corresponding to the current monitoring platform where the working machine returns the monitoring data, a switching instruction is sent to the working machine, and the switching instruction is used for instructing the working machine to switch the monitoring platform where the monitoring data is returned to the monitoring platform corresponding