Universal serial bus interface hood

The utility model discloses an interface cap of a universal serial bus, which comprises a middle and rear shell component, a front shell and a button; wherein, a button opening is formed on the front shell, and the button is arranged in the button opening; the middle and rear shell component is provided with an elastic component, and the front shell is fixed on the middle and rear shell component. By adopting the universal serial bus interface cap, a USB interface cap and a USB body are reliably connected, and the USB interface cap and the USB body can not get loose and the loosing and dropping off of the USB interface cap due to intensified abrasion can be avoided in the long-term application process of the USB equipment. Moreover, the universal serial bus interface cap is simple and practical, and is suitable for the application and popularization in the production practice.