Function module-extendable intelligent meter

The invention relates to a function module-extendable intelligent meter, which comprises a display panel and a function module, wherein a plurality of electrical connecting sockets are arranged on the back surface of the display panel in parallel, and electrical connecting plugs matched with the electrical connecting sockets are arranged on the function module; and the lower ends of the display panel and the function module are positioned by a clip and slots, and the upper ends of the display panel and the function module are locked and fixed by a screw. The invention provides the intelligentmeter which can realize that extended signal channels and function components can be configured on site or by users through independent functions modules, and the intelligent meter has the characteristics of user-configuration, on-site adjustment, compact structure, flexible handling and high performance price ratio, and is convenient to maintain and the like.