Document Management System (Apookle D5), based on construction of Apookle document database technology, includes features such as network management of document-based information, encryption, authorization, control, scan identification, quick positioning, online editing, version control, content retrieval, identity authentication, etc., and is oriented for individuals, government, finance, energy, manufacturing, schools, research institutions, enterprise and public institutions, etc., where subscribers are enabled to jump up to a new stage when employing Electronic Document Management System. Functions and features provided by the system, for example, data centralization, cluster computing, information encryption, effective control, version control, authorized visit, quick positioning, content retrieval, etc., have effectively facilitated subscribers’ informationization construction, increased application efficiency for office-based document and data, and reduced the cost of communication and security management, hence enhancement of immediate effectiveness for computer operation.