The invention provides a high-precision microvibration measuring system, which consists of a base, a load pan, eight piezoelectric transducers (four vertically arranged piezoelectric transducers and four horizontally arranged piezoelectric transducer) and a data acquisition and processing system, wherein the vertical piezoelectric transducers are positioned between the load pan and the upper surface of the base and are tightly pressed by bolts; the side piezoelectric transducers are positioned on the periphery of the load pan and are connected with a side positioning plate and the base through blots. The reasonably arranged eight transducers can measure three dynamic forces and three dynamic bending moments of a disturbance source. The disturbance source can be arranged inside or outside the system according to specific requirements. The piezoelectric transducers are connected with the data acquisition and processing system through wires; and the measuring system can precisely measurethe disturbing force of a microvibration source with high reliability.