The invention discloses a polarity verifying device for a remote-control three-phase current transformer. The polarity verifying device comprises a three-phase current transformer polarity verifying instrument and a remote controller, wherein the three-phase current transformer polarity verifying instrument comprises a wiring port A, a wiring port B, a wiring port C, a wiring port COM and a secondpower supply. According to the polarity verifying device, the labor can be greatly saved, and operators for ''dotting'' and ''lifting'' outdoors in a traditional manner can be omitted; and by utilizing a remote control manner, a link for communicating by virtue of communication equipment in a traditional manner can be omitted, errors in a verifying result caused by poor communication equipment isreduced, and the verifying reliability of the current transformer is greatly improved. The polarity verifying device can meet the technical conditions during the verification of the three-phase current transformer, the deficiencies of term-by-term operation in the traditional manner are improved, and the verifying operation efficiency is greatly improved.