The purpose of this article is to discuss the advantages and disadvantages of computer technology applied in current second Language instruction. In second language acquisition domain, Perrett (1995) has mentioned that if students are provided with the opportunities to use language and learning strategies in the second language, and some training or explanation in their application, they can develop these strategies through exposure to and experience in the second language.” Therefore, explaining the advantages and disadvantages of computer technology to teachers and students seems to be necessary. Only after guiding, do teachers and students realize the benefits of computer technology for second language acquisition, then they can apply computer appropriately and join those computer assisted language learning programs by their own wills.