The quartz crystalunittesting method of zero phase technique in a πnetworkrecommended by IEC relies on strict limits on test environment to ensure the test accuracy. In practical application, the test environment of production site will bring in stray reactance, which seriously affects the test accuracy. To improve test accuracy, according to the model of electrical parameter of quartz crystal as well as the difference between idealπnetwork and actualπnetwork model, the effect of distributed inductance on the test accuracy of resonance frequency of quartz crystal were explored based on theoretical analysis and experiments. The method of capacitance compensation could significantly reduce the effect. The experimental results show that the testing accuracy of series resonance frequency of quartz crystal could be up to ±2×10-6after compensation.