Negative interest rate in Japan refers to the phenomenon that the Central Bank of Japan implements negative interest rate measures. Negative interest rate essentially refers to the behavior of banks to change the deposit interest rate to negative value. In the eyes of depositors, under normal circumstances, they should be able to receive deposit interest on time after depositing the principal in the bank, and the measure of negative interest rate runs counter to this phenomenon, that is, depositors not only can not earn interest by depositing the principal in the bank, but pay a certain percentage of handling fees to the bank.

The implementation of negative interest rate measures needs to be considered according to Japan's national conditions. The central bank tries its best to reduce the frequency of public deposit of principal in banks through negative interest rate, with the aim of forcing the domestic public to use the disposable principal in their hands for social investment and consumption, thus promoting social and economic development and improving the liquidity of domestic funds to a certain extent.