The grouting sleeve is the key connecting part of the precasted concrete(PC) structures,and the internal grouting defects in sleeve will seriously affect the mechanical properties of PC structures.In this paper,the stress wave propagation in the piezoelectric ceramic driven grouting sleeves with different defects is studied numerically by using the electromechanical coupling numerical simulation method.By comparing the health condition and the amplitude measured by the piezoelectric ceramic plate on the grouting sleeve models with different grouting defects,the relationship between the defect and the measured signals is analyzed,and the defect evaluation index is defined to evaluate the degree of grouting defects in the sleeves.The results showed that the grouting defects lead to a significant increase of the received piezoelectric amplitude of the piezoelectric plate.The defined evaluation index can effectively identify the grouting defects inside the sleeves.The stress wave measurement based on the mounted piezoelectric sensor illustrates the effect of sleeve grouting defect.