To understand error properties and transmission properties of dynamic measurement system,a new method was put forward by combining EMD with error matching based on the theory of whole system dynamic precision.Firstly,EMD was used to decompose the output error of dynamic measurement system,and error matching was used to seek error sources according to the results of decomposition.Simulation results show that the method can trace error effectively with high speed and high efficiency.Therefore,it is highly feasible and applicable.