---
type: "Learn"
title: "美国国债"
locale: "zh-CN"
url: "https://longbridge.com/zh-CN/learn/united-states-treasury--100768.md"
parent: "https://longbridge.com/zh-CN/learn.md"
datetime: "2026-04-01T07:58:06.066Z"
locales:
  - [en](https://longbridge.com/en/learn/united-states-treasury--100768.md)
  - [zh-CN](https://longbridge.com/zh-CN/learn/united-states-treasury--100768.md)
  - [zh-HK](https://longbridge.com/zh-HK/learn/united-states-treasury--100768.md)
---

# 美国国债

UST is the abbreviation for the United States Treasury, the federal government division that manages U.S. finances. UST is commonly used to reference debt that is issued by the United States.

## Definition

U.S. Treasury Bonds are debt instruments issued by the U.S. Department of the Treasury (UST) to fund government expenditures. They are considered one of the safest investments globally because they are backed by the full faith and credit of the U.S. government.

## Origin

The history of U.S. Treasury Bonds dates back to 1790 when the U.S. government first issued bonds to pay off debts from the Revolutionary War. Since then, they have become a primary means for the government to raise funds.

## Categories and Features

U.S. Treasury Bonds are mainly categorized into three types: Treasury Bills (T-Bills), Treasury Notes (T-Notes), and Treasury Bonds (T-Bonds). T-Bills have short maturities, typically less than a year; T-Notes have medium maturities, usually 2 to 10 years; T-Bonds have long maturities, typically 20 to 30 years. They are characterized by low risk and fixed interest payments.

## Case Studies

During the 2008 financial crisis, investors flocked to U.S. Treasury Bonds for safety, leading to a drop in their yields. Another example is during the 2020 COVID-19 pandemic, when the U.S. government issued a large amount of Treasury Bonds to fund economic stimulus packages.

## Common Issues

Investors often worry about the low yields of U.S. Treasury Bonds, especially during periods of high inflation. Additionally, market volatility can affect their short-term value.


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