This report is part of the subject of IIB2205: Microeconomics prepared After visiting Bank of Thailand Museum and the website www.bot.or.th. The purpose For the study and analysis of the information of the Bank of Thailand after visiting Bank of Thailand Museum and the website www.bot.or.th the History of Thai currency, Roles and responsibilities of Bank of Thailand to the Thai economy and to businesses in Thailand. , and my business Planning to do in the future that BOT and commercial banks can support business Producers hope that this report will provide knowledge. And helpful to all of you readers.