The utility model provides a terminal box for metering device is changed to area load aims at solving the problem that need cut off the power supply when changing the measuring equipment among the prior art, including box body, short circuit plug, two live wire terminals, two zero line terminals, live wire terminal connection is between live wire and the fire wire connector that corresponds metering device, and zero line terminal connection is between zero line and the metering device zero line that corresponds connect, the live wire terminal all sets up on the box body, and the zero line terminal all sets up on the box body, be equipped with the jack that matches with the short circuit plug on the box body, two live wire terminals switch on through the short circuit plug, and two zero line terminals switch on through the short circuit plug. The utility model discloses well box body, two live wire terminals and two zero line terminals link to each other live wire, zero line with metering device, after plugging the short circuit plug, the electric current of live wire, zero line process short circuit plug, and do not pass through metering device, when changing metering device, the user can not be cut off the power supply, it is more convenient to make user's power consumption.