With the development of science and technology, computer technology and information technology have been widely used in our work and study. Computer technology is an important part of the information technology, but only the computer application is unable to meet with the needs of most people. So under the new situation with rapid development of technology, only the combination of computer technology and information technology can better meet the needs of social development. This article analyzes the difference between computer technology and information technology, finds out better way to realize the combination, and gives the analysis.