The utility model discloses a current transformer polarity test system, current transformer's once side setting is in the position of the switch, and the secondary side setting is in the protection device position, the system includes: the remote controller, through wireless mode with the control box that the remote controller is connected, and ampere meter, the control box with the current transformer of the position of the switch once inclines and is connected through first test wire, the ampere meter with the current transformer secondary side of protection device position is connected through the second test wire. Adopt the utility model discloses a current transformer polarity test system can effectively improve current transformer polarity test's rate of accuracy.