In recent years, with the continuous popularization of Internet technology and the rapid development of computers, computer engineering can realize the effective transmission of information and promote the development of network and E-commerce. Computer engineering is widely used. The openness and sharing of the information platform naturally inevitably lead to some related security problems. The occurrence of a series of problems such as virus intrusion, hacker attack, and data loss make the information platform risky. To this end, the application of computer engineering is deeply discussed, and the application advantages of computer engineering are analyzed, aiming to ensure the safety of computer application, and give full play to its advantages, facilitate people’s life, and achieve fast, convenient and efficient results.