The present invention discloses a network connection device. The network connection device includes a plug and a socket; the plug includes network cables, an encapsulation portion and a Universal Serial Bus interface; one end of the encapsulation portion is connected with the network cables, and the other end of the encapsulation portion is connected with the USB interface; and the socket is matched with the USB interface. Compared with the existing network connection device, the plug of the network connection device provided by the present invention is disposed by adopting the USB interface and particularly a Type-C interface and may be plugged forward and backward, so the network connection device not only is plugged conveniently, but also is small and exquisite, has a stable signal and does not cause an unstable network connection due to a failure of one signal pin to affect the signal transmission.