The invention discloses a log information storage method and apparatus. The method comprises the steps of analyzing a file system of a storage device to obtain a system root directory of the storage device after determining that the storage device is powered on; generating a log file in the system root directory; and obtaining log information of the storage device and writing the log information in the log file. According to the method and apparatus, a user can quickly obtain the log information of the storage device and know a usage condition of the storage device in time through the log information, thereby improving the user experience.