Modern vehicles incorporate dozens of sensors to provide vital sensor data to the system, where GNSS (global satellite navigation system) gives the localization, navigation, and time synchronization that can improve the safety factor of the vehicles. However, the GNSS signal is very vulnerable to jamming especially spoofing attacks that have great influence on safety and financially critical applications. It is important to protect GNSS from all kinds of jamming, which can guarantee the stability. So many anti-spoofing schemes are proposed which mainly on spoofing detection. But they have large-complexity that cannot be used in real-time scenario. In this paper, a GNSS anti-spoofing technology based on Doppler shift in vehicle networking is proposed. In the case where one spoofing source is present that contains several spoofing signals, it can conduct the spoofing detection using two methods given in this paper with a low cost. The technology is very effective and validated through simulation results.