To find out the American English pronunciation ability of the 4th year students majoring in English for International Communication at RMUTI, Surin Campus. The participants in this study were 29 students. The research instrument used in this study was a pre-test and post-test. The participants were given the test then listening from sound test and the participants circled the correct word that they have heard. The results of the analysis showed that most of the participants had the post-test than pre-test.