The invention discloses a USB terminal cutting device which comprises a base, a terminal material belt conveying track, a material belt pushing module and a terminal shaping module. The terminal material belt conveying track comprises a fixed track and a floating track. The inner bottom surface of the second channel of the floating seat is higher than the inner bottom surface of the first channel of the fixed rail; the tail end of the floating track is provided with a terminal cutting and plugging module. The terminal cutting and end inserting module comprises a sliding seat, a first driving unit, a second driving unit, a cutting die and a material receiving plate, the first driving unit can drive the sliding seat to move in the vertical conveying direction, the cutting die is located above the material receiving plate, and the second driving unit can drive the cutting die to move up and down; thus, cutting and terminal insertion are integrated in the same functional module, the device structure is simplified, the occupied space is smaller, clamping and positioning of the terminal group can be completed during cutting, positioning is not needed in the terminal insertion link, terminal insertion accuracy can be ensured, meanwhile, the overall machining and assembling efficiency is effectively improved, and the requirement for higher machining efficiency is better met.