This article focused on the informational technology as the tool to promote educational equity by the analysis of critical sociology of education, and proposed some alternatives with the practical meanings. Firstly, this article analyzed the pro and anti dimension of information technology by the consideration of sociology of education, and found the critical analyzing point within the dialects. Secondly, according the coring criteria on the instrumental innovation, structural liberation, and subjectivity praxis, this article considered and explored the connections between information technology and educational equity. Finally, based on the critical sociology of education, this article sought the critical analysis about instrument, structure, and subjectivity to configure the ideal of educational praxis to provide educators some alternative practices referenced.