Coal detection is mainly carried out in accordance with the relevant standards and regulations for coal tests and analysis. Coal detection needs to have support of certain technology. Detection management system is a set of work procedures that is specially designed for coal testing. Through the strict management of coal inspection management system for coal detection, in which computer technology has played a key role, will increase the working efficiency of coal detection and automatically analyze the results of coal detection. This paper will research the application of computer network technology in the coal inspection management system.