1962 North Korea and China contracted a border treaty. North Korea abandoned Kando territories from this treaty. This treaty was secret treaty. Two countries did not register in U.N. North Korea informed to neither Korea. Korea of past asserted Kando territory rights. Now Korea toward to China is demanding Kando territory rights. Some day Korea and North Korea will attain a unity. Korea which is unified will turn Kando territories and the possibility which will receive will be? Turned until now from research and said that there is not a possibility of receiving. This research turned but a little a conclusion the possibility of receiving is drew. Reason the border treaty which China and North Korea conclude is because is illegal. At that time North Korea and China was not the nation which is legitimate. Legitimate the nation is because being Taiwan and Korea.