Abstract:in recent years, along with the rapid development of Internet, an increasing amount of network information interaction. All kinds of bad network interactive information data with network interactive space, damage to the social order. To this end, a series of bad network data management system is developed. Commonly found long-term practice, traditional bad data computer network management system of dynamic management way is bad data detection is not strong, bad information data content, such as low recognition and poor poor data management logic problem. Combined with the advantages of SDN framework, put forward the framework of SDN bad data computer network management system design. The NVR data interaction module, the data characteristics of DNA content recognition algorithms and big data poor overall planning module for the traditional data management system to solve the problems in the way. Is put forward under the framework of SDN is proved by experiments and bad data computer network management system than traditional don't want to data management system, in bad data identification, detection, statistics, management, and other aspects have absolute advantage.