Code-switching in the English as a foreign language(EFL) classroom is a disputable subject in the academic area. There are two main schools of thought toward English-Chinese code-switching. One holds an opinion that the code switching as a barrier for the first language may produce interference and negative transfer, while another argues code-switching as a facilitator for the first language may provide the most effective meanings of learning. The focus of the argument is to use or not use the mother tongue. In this paper, an attempt has been made to investigate whether it is necessary to use code-switching in the college English class from the perspective of English learners. By doing so, a questionnaire has been made to reveal the expectations of students with different English proficiency toward code-switching. And then the paper has provided suggestions on the way of using appropriate code-switching strategies in class to facilitate EFL learning.