The invention is an Internet worm virus early-precautioning method, and its characteristic: firstly configuring a set of equal network application programs for an equal network composed of private intranet and public Internet user on the basis of existing network management software of each node system of the Internet, then constructing a characteristic data structure containing two parts of automatic synthesis and artificial processing for each node system, and giving information accumulation eigenvalue in the form of properties. Once its node system or network is abnormal, the equal network application program will start cooperative mechanism to transmit precaution information to each node system of the whole Internet in the form of equal network information, so that it adopts conservative behavior; if the information accumulation eigenvalue on the node receiving the information is over the precaution value, it will activate the system to search and filter virus, thus achieving the purpose of precautioning and rapidly blocking worm virus transmission. It meets the requirements for safety, autonomy and early precaution of the whole Internet.