利用制备的三光子偏振广义Greenberger-Horne-Zeilinger纠缠态，测量了三体纠缠度、Svetlichny不等式和广义Greenberger-Horne-Zeilinger态的密度矩阵.根据密度矩阵计算了三体纠缠度，测量得到了广义Greenberger-Horne-Zeilinger纠缠态的纠缠和非定域性之间的关系.结果表明：在实验误差范围内，三体纠缠度的实验测量值和理论值一致；Svetlichny算符的期望值和理论计算结果具有较好的一致性；体系非定域特性和体系的纠缠程度密切相关，当纠缠度减小时，非定域性减弱.

Three qubits entanglement and Svetlichny inequality of generalized Greenberger-Horne-Zeilinger states were measrued. Based on the density matrix of the generalized Greenberger-Horne-Zeilinger states, the degree of tripartite entanglement was calculated. Through the experimental investigation of the three qubits generalized Greenberger-Horne-Zeilinger entanglement and Svetlichny inquality, the relation between the entanglement and nonlocality property was obtained. The results show that the three-body entang lement measurement valuse are lonsistent with the theoretical values within the limits of experimental error. The expectation values of Svetlichny operator are consistent with the theoretical results. The nonlocal properties are closely related to the degree of the entangled system. The nonlocal properties decrease as the entanglement derates.