Zhao Kejian's signature notes have certain collection value. Zhao Kejian, senior arts and crafts artist of Beijing Banknote Printing Co., Ltd., designer of the Millennium Dragon Banknote, designer of the second generation ID card in China, and one of the designers of the fifth set of RMB. His collection of banknotes and stamps is deeply loved by fans, especially the Millennium dragon banknotes he designed are hard to find. The paper money signed by Zhao Kejian, if it is genuine and in good condition, may have certain collection value. However, the specific value needs to be determined according to factors such as the appearance, rarity and market acceptance of banknotes.

In addition, it should be noted that if you collect banknotes, you need to pay attention to factors such as authenticity, appearance and rarity to avoid being cheated or collecting low-value collections. It is recommended to do more investigation before collection, or seek the help of professionals.