The utility model discloses a fixing seat of a device for non-power-off rapid meter assembling and disassembling. Four cross-shaped grooves are formed in the fixing seat. On the front side of the fixing seat, the grooves penetrate through the side face to form open grooves. The open grooves include two inlet wire grooves and two outlet wire grooves. Grooves for supporting a conductive support are formed in the middle parts of two side surfaces of each open groove. Inlet wire binding posts of electric network source flexible inlet wires are arranged on the rear part of fixing seat behind the two inlet wire grooves. Open grooves of outlet wire binding posts are arranged on the front lower part of the fixing seat of the two outlet wire grooves. A connecting device used for fixing the fixing seat to a fixed object is arranged on the fixing seat. By adopting the fixing seat of the device for the non-power-off rapid meter assembling and disassembling, the meter assembling and disassembling can be realized without a power cut, so that the power-cut loss and the inconvenience to the customer, which are caused by the power cut which is needed to assemble and disassemble a meter in the prior art, are substantially reduced, and the quality of power supply is enhanced.