A piezoelectric-cantilever-type microvibration pickup sensor is presented. To design appropriate structure for concrete vibration conditions, the natural frequency and corresponding voltage signal output are calculated and analyzed by finite element method. 提出了一种压电悬臂梁结构的微拾振器,利用有限元法计算了结构的固有频率和电压输出,以设计适合具体应用环境的器件结构。