Abstract: “Capital debt，”also named“official indebtedness，”mainly refers to the usurious loans to expectant officials incurred while awaiting appointment in Beijing.   In the Qing Dynasty，usurious borrowing by officials in the Beijing was serious，and it caused widespread concerns both in the government and among the public. To solve this problem，the central government not only frequently demanded a halt to the practice，but also repeatedly introduced legislation to curtail it. In the reign of Emperor Qianlong，the central government allowed officials to borrow against future income，but with little success. During the Qing Dynasty，the“capital debt" was at an annual rate of more than one hundred percent under normal circumstances，sometimes it was even higher Researchers think that the interest rates on ordinary usury underwent a process of gradual reduction during the Qing dynasty，but there was no significant reduction in interest rates on“capital debt，”which highlighted this type of debt’s uniqueness. When indebted officials served in local government，under the pressure of the high interest rate，they either appropriated public funds or exploited the people. Even more，some of them worked hand-in-glove with the creditors or clerks，which resulted in the corruption of the local administration.