Password setting method and device

The invention provides a password setting method and device, and the method comprises the steps: searching a historical password of a password setting object in a read-only memory (ROM) under the condition that a current password to be set by the password setting object at this time is obtained; under the condition that the historical passwords are found in the ROM, the historical passwords and identification information of the historical passwords are obtained, and the identification information of any historical password comprises characters used for describing the setting sequence of any historical password in all the historical passwords; and based on the historical password and the identification information of the historical password, under the condition that the ROM and the current password pass the security verification, performing password setting on the password setting object based on the current password. According to the password setting method and device provided by the invention, the failure of