The utility model relates to equipment used for ammeter inspection and maintenance, in particular to an uninterruptible power replacement ammeter combiner, which comprises a socket assembly and an uninterruptible power replacement ammeter combiner, the socket assembly is inserted into an ammeter box, and the uninterruptible power replacement ammeter combiner is inserted into the socket assembly during uninterruptible power replacement of an ammeter. The device is simple in overall structure, small in size, easy to machine, low in manufacturing cost, safe and reliable; after the plugging columnin the continuous power supply ammeter replacement device is plugged into the jack of the plugging seat, the ammeter can be replaced without power failure, and enterprises and public institutions andresident electricity utilization are not influenced.