With the rapid development of educational technology, It's application has been extended to education, business and other fields. For many years, the targets of educational technology mainly aimed at general education, adult education or training, The special education is the blind field of the study and practice of educational technology. As the size of special education have been expanding, our enrollment of deaf students is increasing, the quality of education is getting more and more important. In this article the author will introduce the educational technology and how it will support the education for deaf students.