The present application relates to the field of mobile terminals, and provides a universal serial bus (USB) interface and mobile terminal. The USB interface comprises: a main body, a power wire insertion tab configured to be connected to an external power wire, and a ground wire insertion tab configured to be connected to an external ground wire. A lower portion of the power wire insertion tab and a lower edge of the ground wire insertion tab are fixed to the main body. The power wire insertion tab comprises P insertion connection portions, and P is greater than or equal to 2. The ground wire insertion tab comprises Q insertion connection portions, and Q is greater than or equal to 2. The power wire insertion tab further comprises an insulation portion providing insulation between the P insertion connection portions, and/or the ground wire insertion tab further comprises an insulation portion providing insulation between the Q insertion connection portions. In this way, the USB interface enables an energized insertion connection portion to be insulated from a floating insertion connection portion, thus alleviating heat generation at the USB interface caused by an electric current of the energized insertion connection portion flowing through the floating insertion connection portion.