A system with a wireless network device is provided. The system includes a wireless network device and an electrical device. A storage unit of the electrical device stores a wireless network profile. A second processing unit of the electrical device detects if the wireless network device is connected to the electrical device. When the wireless network device is connected to the electrical device, the second processing unit of the electrical device transmits the wireless network profile to the wireless network device. When the wireless network device obtains the wireless network profile, a first processing unit of the wireless network device drives a first wireless network unit of the wireless network device to transmit data wirelessly according to the wireless network profile. A method for processing a wireless network profile is also disclosed.