The invention discloses a real-time processing method for installation and connection of a metering device, and belongs to the technical field of electric power. An existing processing mode is large in manual workload and low in efficiency. And the installation condition of on-site equipment cannot be reflected in real time. On the basis of the intelligent device instant meter searching technology, instant installation and instant data collection are carried out on the electric energy meter, incremental meter searching is started after the electric energy meter is powered on, and instant installation and instant reporting of the newly-added electric energy meter are completed. According to the assembling processing method, the workload of manual operation and maintenance is reduced, and the workload of operators is greatly reduced; Meanwhile, the collection master station adopts a flow processing method of immediate collection and immediate installation and debugging, so that the installation and debugging efficiency of the metering device is improved, and the number of times that installation personnel repeatedly run out of the site is reduced; Furthermore, the collection master station is immediately installed and debugged, so that data can be collected as soon as possible, and better data support is provided for subsequent data analysis and statistics.