With the rapid development of information and technology, language learners have more ways to acquire the target language. Recently, WILL has gained popularity, for informal web-based learning of English has been depicted as a process driven by the purpose of communication. Thus, teachers have many challenges when teaching learners who have experienced informal online language learning. Therefore, teachers may change their teaching strategies in order to achieve their teaching effectiveness. The present study investigated 30 Chinese in-service college English teachers' beliefs of WILL in order to provide for teachers the insight into the current consciousness language teachers should have of these practices.