Encrypted USB flash disk capable of preventing information leakage

The invention discloses an encrypted USB flash disk capable of preventing information leakage. The USB flash disk comprises a USB flash disk shell, and the USB flash disk is characterized in that a high-pressure cavity is formed in the USB flash disk shell; a USB plug is arranged on the left side of the USB flash disk shell; a connecting body is arranged at the right end of the USB plug; sliding columns are fixedly arranged in the upper wall body and the lower wall body of the high-pressure cavity; a USB memory bank is arranged in the high-pressure cavity; through holes are formed in the leftside and the right side of the USB memory bank; the sliding columns are arranged in the through holes in a sliding manner; through the invention, the USB flash disk has a strong encryption characteristic; when the USB flash disk is subjected to structural damage, encrypted hardware is automatically destroyed, the USB flash disk has a biological recognition function, the USB flash disk has two modes, namely a common mode a