The invention relates to a method for detecting the quality of grouting of a sleeve of a prefabricated concrete structure. The method comprises the steps that before a grouting procedure, a guiding
pipe with the depth enabling the guiding
pipe to achieve the inner wall of the sleeve is inserted in to a
gout outlet pipeline of the sleeve, the guiding
pipe is pulled out after a grouting material isfinal set, when the guiding pipe is pulled out, if a hollow cavity is formed in the guiding pipe by
visual inspection, that is, the grouting material in the horizontal guiding pipe and the grouting material in the vertical sleeve are discontinuous, and the condition that grouting of the sleeve is not full; and otherwise, if a breaking-off surface of the end part of a horizontal section of the guiding pipe and the grouting material of the inner wall of the sleeve can be seen, the grouting material in the guiding pipe is full; and the
solid grouting material in the guiding pipe is taken out to be made into a cylinder test piece, the curl frequency and the
distortion frequency of the test piece are measured, a young modulus E<d>, a
shear modulus G<d> and a poisson ratio mu are acquired, and
dynamic elasticity modulus data is obtained to estimate the strength and material of the grouting material. The method detecting the quality of grouting of the sleeve of the prefabricated concrete structure has randomness, the adaptability is high, the cost is low,
population is easy, rapidness and high efficiency are achieved, the connecting part of grouting of the sleeve cannot be damaged, and comprehensive, objective and precise reference is provided for quality detection of actual grouting construction.