In economic society, most people like to invest their fortunes in the capital market and security market. As more and more investors join in the investing market which is very complex and fascinating, and it can be successful. Unlike the deposits are hypothecated by the federal government, stocks, bonds and other securities can lose value in capital market because their no surety. So the security and exchange commission play an important role in the capital market, and the important thing is the security and exchange commission demands the public companies should be disclose the meaningful financial and other information to the public. This provides an equitable environment and common knowledge for the investors who can make a decision for buy, sell or hold a security. The security and exchange commission supervises the key participants in the securities market, which contains securities brokers and dealers, securities exchanges, investment advisors, and mutual funds. The security and exchange commission is concerned primarily with promoting the disclosure of important market-related information, maintaining fair dealing, and protecting against fraud. Every year, the security and exchange commission works closely with other institutions, such as Congress, other federal departments and agencies, the self-regulatory organizations, state securities regulators, and various private sector organizations. The other thing is the security and exchange commission use the securities laws to deal with civil enforcement actions against individuals and companies which has typical infractions. The responsibility of the U.S. security and exchange commission is to protect the investors, maintain fair, orderly, and efficient markets, and facilitate capital formation. This article is an overview of the Securities and Exchange Commission history, role of the division of different offices, how the Securities and Exchange Commission maintains…