Abstract:   Because of its small power and high concealment, deception spoofing is becoming an important means to interfere with satellite navigation signals.By using the multi-node deception spoofing detection based on positioning location that is commonly used in model and through the Neyman-pearson method, this article deduced a multi-node deception spoofing detection algorithm based on location coordinates. This algorithm can obtain the expressions of threshold measurements and detection probability in different deception conditions, which can provide the theory basis for multi-node field detecting deception.