The invention discloses an outgoing document control system and a method. The system comprises a document outgoing center and a document display center which are mutually communicated, wherein the document outgoing center comprises a document format conversion module, a digital certificate manufacturing module, a document player and a digital certificate integrated module; the document format conversion module converts an outgoing document into the set format and sends the outgoing document to the document display center; the digital certificate manufacturing module generates a digital certificate according to outgoing rules in the process of manufacturing an outgoing document packet; the document player and the digital certificate integrated module enable the generated digital certificate to be embedded into the document player; the document display center receives the document sent by the document format conversion module; and when the document display center receives a document viewing request sent by a terminal, the digital certificate corresponding to the terminal is verified, and then, the terminal is authorized to play the corresponding document. The invention not only can enable a client or a cooperative partner to browse an electronic document but also can effectively prevent the client from modifying and abusing the electronic document and avoid spreading the information on the document.