As the primary means of communication, speech is an essential aspect for humans to interact and build connections in the social world. Speech intelligibility is critical in social communication;unintelligibility may lead to confusion, misunderstand?ing, and frustration. Many Chinese learners of English find it challenging to apply English into social interaction and reach mutual intelligibility with international communicators. This article analyzes the obstacles impeding Chinese EFL learners' speech intelli? gibility development, from the aspects of phonology (segmental and suprasegmental features) and pragmatics. Some strategies are proposed to help Chinese learners ameliorate phonology and pragmatics problems and improve speech intelligibility in English communication.