Abstract: Acoustic transmission method is currently one of the most common detection methods in pile foundation detection. However, due to complex working conditions and insufficient experience of the inspectors, the accuracy and correctness of the detection results are seriously affected. For this reason, this paper analyzes the application principle of acoustic wave transmission method in foundation pile detection, discusses the application method of acoustic wave transmission method in foundation pile detection, and proposes the application strategy of acoustic wave transmission method in pile foundation detection for reference.