The main businesses include brokerage business, proprietary business, asset management business, margin trading and securities lending business, IB business, issuance and underwriting business, and equity mortgage. According to the inquiry on the Education and Training Network, it is found that the main business of the securities company is brokerage business. It is the agency business of buying and selling securities in Shanghai and Shenzhen stock markets. Investors must open an account with a securities company and use the trading channel trading seats provided by the securities company to conduct securities transactions with the exchange. The business of securities companies charging service commissions. Self-operated business. The business of investing and operating its own funds by taking advantage of the talent advantages, information advantages and market experience of securities companies. Asset management business. Referred to as asset management business. Relying on the many advantages of securities companies in investment, they provide investment services to customers, that is, help customers manage their finances, earn financial management service fees, and customers are responsible for any losses. Its representatives are the various financial products provided by securities companies. Margin financing and securities lending business. Lending money to customers to buy securities or lending securities to customers to sell, and charging service fees. IB business. That is, agency futures business. Issuance and underwriting business. To list a joint-stock company's stocks, it requires guidance and recommendation from a securities company, which involves very professional financial services. You can only rely on the services of securities companies. After listing, we help joint-stock companies underwrite in the primary and secondary markets. Equity mortgage. Equity pledge loans of a certain scale can be carried out.