The work aims to develop research ideas for the application of ink-jet printing technology through the study on the principle, production and development of printing technology. By studying the principle of ink-jet printing technology and the research status at home and abroad, the existing problems in the development of the current ink-jet printing technology in China were analyzed, the key technical problems in the research and application of the technology were summarized, and the main development direction and countermeasures of the future research were put forward. Current research should be mainly focused on the following 5 aspects: researching the ontology of ink-jet printing system, especially the research and development of digital ink-jet composite equipment; increasing the breakthrough of the nozzle research and development, developing high-speed and low-cost nozzles with good applicability and independent intellectual property rights; improving the precision of the ink drop injection while improving the control system integration and applicability; aiming at different inks, actively developing intelligent ink supply system with strong applicability and providing an ideal ink flow environment for nozzle cavity in real time; and strengthening and cultivating compound talents.