To accurately analyze the functional characteristics of metallic materials and test their structural stability, based on the Euler-Bernoulli beam theory, a multi-order resonance method is proposed to calculate the dynamic Young's modulus by analyzing the first-and second-order resonant frequencies of the material; and a dynamic test system with a high-frequency exciter and a laser vibrometer as the core is built. The system has a wide dynamic range, precise control and measurement capabilities, and excellent anti-interference. Four kinds of metal materials were tested, and their average values and coefficients of variation of Young's modulus were calculated, statistically analyzed. It is verified that the method has high accuracy, consistency and robustness, while effectively avoiding the influence of strain measurement tools and internal structure changes in traditional static tests. This study provides important support for the development of performance testing and structural analysis of isotropic metals and non-metallic materials.