The present invention relates to a method for an online distribution information system. The online distribution information system comprises a plurality of distribution clients, a proxy network, a distribution / subscription module, a plurality of subscription clients, and a management cluster. The distribution / subscription module comprises a message memory, a message sectionalizer, a user subscription manager, and a message dispatcher. The method comprises the key process related to the system. According to the method disclosed by the present invention, in order to solve the problem of information resource understanding of the computer, the semantic technology is combined with the distribution and subscription system organically, and the intention of the distribution client and the subscription client can be grasped from the perceptive of the semantic layer, so that the distributed event can be more accurately matched with the requirements of subscribers, the matching quality of subscription and distribution can be improved, and the performance of the entire system can be improved.