In order to analyze the influence on the material measuring accuracy by the inertial acceleration caused by the wave-induced hull motion,a mixing vessel with production capacity of 200 m3?h was selected to analyze its hydrodynamic characteristic with SESAM software.Short-term predictions about the vertical acceleration at the measuring reference point were done,and the acceleration sensor was installed in the measuring deck layer.Through the actual measurement and according to the theory,the influence was confirmed to be existed.