Abstract(#br)Aiming at the fuzziness of node trust evaluation and the dynamic evolution of trust decision in spatial information network, a network node trust evolution model based on fuzzy correlation measures is proposed. The model introduces the subjective trust ambiguity of the node, and effectively improves the accuracy of trust classification. Based on the evolution process of node trust strategy selection, the dynamic distribution of different nodes in the network is simulated and simulated to show the equilibrium distribution of evolution. The simulation shows the robustness of the fuzzy trust value calculation model, and verifies the influence of the node interaction on the steady state