The utility model discloses a power line storage device, include: and a support. The bobbin, the rotatable setting of bobbin is on the support, be used for driving bobbin pivoted drive arrangement, a switch for accessory drive, power source, power source sets up on the support, the conversion equipment of accessory drive drive direction. In using, the power cord of accomodating needs inserts in the bobbin and is connected with power source, power source's effect is with power cord and the outside electricity intercommunication of realizing, conveniently accomplish series resonance withstand voltage test's receiving line work, then open the switch, drive arrangement drive bobbin rotates, make the power cord winding on the bobbin, realize accomodating of power cord, when needs expand the power cord, only need the drive direction through the conversion equipment reverse drive device, the manual work pulls one end of power cord, the line is sent in the reversal of cooperation bobbin, realize the expansion of power cord, the labor intensity of it is on -the -spot is reduced, the efficiency of receive the line is improved.