The term of US Treasury bonds is generally divided into short-term, medium-term and long-term. /kloc-short-term national debt within 0/year; The period from 1 to 10 is medium-term national debt; Long-term national debt with a maturity of more than 10 years. There are discount bonds, fixed interest rate bonds and savings bonds in the national debt market; There are short-term bonds issued according to seasonal demand; There are also national debt linked to the inflation index and so on. Most US Treasury bonds refer to negotiable bonds. In addition to negotiable bonds, there are a large number of unknown illiquid bonds, of which federal investment funds hold a considerable share.

There are two main ways to issue U.S. Treasury bonds in the market: one is to issue Treasury bonds to underwriting institutions by bidding. The Ministry of Finance regularly announces the issuance conditions and quantity, and the underwriting institutions subscribe for government bonds by bidding through an independent IT network system. Underwriting institutions must regularly accept the rating of professional credit rating companies, and can participate in the underwriting of national debt only after being approved by the first-level underwriter management Committee. The second is to issue treasury bonds to individual investors. Individual investors can subscribe for government bonds directly from the Ministry of Finance through the accounts of banks and securities companies or on the Internet.