There were many varieties of banknotes in the Republic of China. The identification methods are now introduced as follows

1. Counterfeit banknotes are overprinted by multiple mimeograph plates using a relatively simple machine or semi-manually, so the color registration is Or overlap or chaos.

2. Cut, dig out and alter banknotes to make counterfeit banknotes. The customs fee of 2,000 yuan is the most commonly discovered type of banknote. It has the words "pay with pay, Shanghai" added, the Central Banknote Printing Plant was changed to the American Banknote Company, and there are also companies that directly print counterfeit coins. Easily distinguished using a magnifying glass.

3. After the advent of color copiers, computer color printing, electronic plate making, and photographic plate making technologies also emerged. Counterfeiting technology has been further improved, making it more difficult to identify counterfeit currency. However, counterfeiters generally forge current circulating currency, so a large number of fakes of rare banknotes from the Republic of China have not yet been found.

4. Counterfeit banknotes mostly use Dowling paper, offset paper, and glossy paper, and the paper quality is relatively coarse. Old tickets are sometimes soft and slumped, there is no watermark on the paper, and non-special ink is used.

During the Republic of China, banknotes with images of the Yellow Emperor, Li Yuanhong, and Liao Zhongkai issued by the Bank of China were all treasures. At the "China Guardian 2000 Spring Auction", "Li Yuanhong's Statue of Bank of China Exchange Notes Complete Set" was sold for 429,000 yuan in a battle involving many collectors and financial institutions, creating a single record in modern China. Record auction price for set of banknotes.