The invention discloses an intelligent online official seal printing system. The system is characterized by comprising an official seal application module, a printing module and a cloud end used for the application module, the printing module or information communication between the application module and the printing module. The official seal application module comprises an application end device used for uploading attachments, approver information and an application form and receiving an approval message, and an approval end device used for receiving, approving and replying application information of the application end device. The printing module comprises a printing signature module, a printing task management module and a printing driver module. The system has the advantages that the process from manual sealing to online intelligent application for sealing is realized; the problems of tedious seal use application, repeated modification of seal use contents, seal remote management, manual sealing and the like in daily life are solved; paperless office development is further promoted; an electronic seal is facilitated; and in combination with the development of a conventional printing technology, the development form of the internet + is adapted.