According to the core indicators of risk supervision of commercial banks, the indicators to measure asset security in China are related indicators of credit risk, including: ① the ratio of non-performing assets, that is, the ratio of non-performing credit assets to all credit assets should not be higher than 4%; ② Non-performing loan ratio, that is, the ratio of non-performing loans to total loans shall not be higher than 5%; ③ The credit concentration of a single group customer, that is, the ratio of the total credit of the largest group customer to the net capital, shall not be higher than15%; (4) The loan concentration of a single customer, that is, the ratio of the total loan of the largest customer to the net capital, shall not be higher than 65,438+00%; ⑤ Total relevancy, that is, the proportion of all related credits to net capital, should not be higher than 50%.