USB data card with external antenna

The utility model discloses a USB data card with an external antenna, which comprises a USB data card body and a USB protective cover, the USB data card body comprises a shell in which a data card mainboard is arranged, a monopole or dipole antenna is arranged on the USB protective cover, a connector is arranged on the mainboard, a copper leaking region is arranged on the monopole or dipole antenna, when in use, the USB protective cover is taken off from one end of the data card and sleeved at the other end of the data card, then the copper leaking region on the monopole or dipole antenna is connected with an antenna feed point on the mainboard through the connector, thereby realizing data receiving and transmitting functions, and the protective cover is sleeved at the end of the USB head when not in use, so as to protect the USB head from damage. By mounting the antenna on the USB protective cover, the utility model increases the radio frequency yellow plate layout area of the antenna, avoids the interference of other components on the mainboard to the antenna performance, and improves the antenna performance, thereby enhancing the performance of the data card, saving the mainboard layout area, and realizing miniaturization of the data card.