For simulation of ultrasonic transverse wave testing with angle probe by finite element method (FEM), it is necessary to investigate the feasibility and effectiveness of this method. A work piece with side drilled hole was designed, and then simulation was carried out by Ansys software using a two dimensional plane strain model. For comparisons, ray tracing method was used to calculate the propagation path of ultrasound and to analyze wave mode conversions on the interface. Besides, photo elastic experiment was carried out to observe the interaction between ultrasound and the side drilled hole. After calculation and analysis, the results showed that: From FEM results, the propagation of sound waves can be revealed, and the reflection and refraction of ultrasound can be observed at the interface, and the interaction process between ultrasound and the hole inside the work piece can be reproduced; the results from FEM simulation agree well with that from ray tracing method and that from photo elastic experiment.