The invention discloses a multithreading web crawler method based on sort management and a real-time information updating system. The system comprises a page acquisition module, a page processing module, a modular mechanism module, a multithreading circulation module, a marked queue management module and a storage module. According to the system, the multithreading web crawler method is adopted and improved, the marking idea is introduced, threads after crawling are marked in a queue mode, and therefore the problem of mutual interference generated in the process of crawler circulation in a conventional multithreading method can be solved; modular mechanisms are adopted for collection of different types of information, so that dynamic increase and reduction of target files can be achieved, and maintenance and modification of the whole system are facilitated. The method well utilizes network bandwidth resources, improves the efficiency of network information collection, reduces interference in the process of multithreading crawling, and is especially suitable for solving the network crawling problem of the real-time information updating system.