The writer of the article analyses dualistic phenomenon that exists in the field of the mechanism ofmoney supply and the circulation of money in Hong Kong. Moreover, the writer also analyses the function of money demand in meteorological method. Some enlightenment that the wirter has gained from the anal-ysis is as the following :1. Linked exchange rate system applies to the economic development in Hong Kong. Circulation ofmoney has certain regularity and total money supply has stable structure in spite of its small open econom-ic system.2. Hong Kong dollar and foreign dollar have different functions in the ciroulation of money. It is ab-solutely unnecessary that the cuerency of Hong Kong is dollarized.3. The meteorological analysis makes it clear that the capital inflow with intention to pursue highprofit has pe impact on the cireulation of money. 4. Although Hong Kong is a completely open economic system, there are some demands of moneydue to the local element.
