This invention relates to network materials automatic management system, which distributes several network terminal devices and visits net servo and researches net controller through page management and designs the aim object and executes the management task. The system comprises the following parts: one research module to collect each net terminal end through net and upload one common file; one agent program module to send the common file for comparing, filtering and processing and writing the materials to one database; one network computer task management module to provide manager to visit database for research and execution. This invention also provides one network materials automatic management method.