The rapid development of computer technology has made the programming functions of C language more perfect, directly enhancing expression ability, and having strong flexibility and functionality in use. There are differences between computer C language programming technology and the commonly mentioned preloading, and it is necessary to enable the application to understand the usage methods and grammar knowledge of C language, in order to successfully complete code editing and achieve a certain software function. Based on this, the article first introduces the process of editing and running computer C language programs, proposes common errors in computer C language program editing, and then uses vertical division as an example to analyze the design and implementation of computer C language program technology, hoping to provide some reference for everyone.