Hong Kong dollar is the legal tender of Hong Kong. According to the Basic Law of Hong Kong and the Sino-British Joint Declaration, Hong Kong's autonomy includes the right to issue its own currency. Its official ISO 42 17 abbreviation is HKD (Hong Kong dollars); The sign is Hong Kong dollars. The Hong Kong Monetary Authority, Standard Chartered Bank (Hong Kong) Limited, The Hongkong and Shanghai Banking Corporation Limited and the Bank of China (Hong Kong) Limited announced on July 20th that they would launch a new series of 20 10 banknotes. Hong Kong has established a linked exchange rate system linking the issuance of Hong Kong dollars to the US dollar. The US dollars held by the Exchange Fund provide support for the stability of Hong Kong dollar banknotes.

1997 before the transfer of sovereignty in hong kong, coins in circulation were all cast with the head of the emperor, which was once the object of collection. Starting from 1993, the government gradually recovered the old coins and replaced them with new ones with bauhinia on the back. However, the Queen's first coin is still legal tender and circulates with the new coin.