With computer technology， network technology， communications technology is developing rapidly， people's lives have undergone earth-shaking ICT network to bring a convenient， fast way of life， right network communication software design and implementation techniques are increasingly high Thesis research computer network communications， software design and implementation， using C/S model， a computer grade examination The paper briefly introduces the computer network knowledge， and communication network status and future of the network application design basis， Then on the computer grade examination system needs analysis and system design， and the concrete realization of the program and technical details， including the server-established， Client and the establishment of major functional modules， such as details of the realization， in addition， the paper cited the system testing Computer Rank Examination System basic network communication Network Communication Design in achieving communication software has many advantages， it is worth further study and research
