Considering that the research on intelligent ship technology in China is still developing, intelligent ship systems have not yet been widely applied in large ocean-going carriers. The design principles are formulated for the intelligent ship system scheme of a 14 000 TEU container ship in compliance with the class notion requirements. According to the actual configuration of the hardware facilities for data sampling in the perception layer of this ship, an integrated architecture is developed by combining the intelligent ship integration platform with various intelligent application functions. The system composition, data utilization, and functional implementation of intelligent navigation, intelligent engine room, and intelligent energy efficiency management system are introduced in detail. The results indicate that the system can achieve intelligent upgrades in route optimization, system monitoring, energy consumption control, decision-making support, and ship management for operating ships. The network security protection strategies are implemented for the risks existing in ship shore data interaction. It provides the selection basis and optimization direction for the future engineering applications of integrated ship intelligence.