This paper introduces the development background of intelligent ships and their remote control. Based on introducing current applications of the remote control unmanned ship and analyzing the demands and scenarios of remote control cargo ships, this paper proposes a remote control framework for cargo ships based on man-machine integration. The corresponding technical levels and related key technologies of different remote control patterns are expounded upon. A review of the importance and development status of key technologies for the remote control of cargo ships is then conducted with reference to major ship network control system achievements. Moreover, regarding the operation and maintenance characteristics of shipping, three considerations are proposed for utilizing perception technologies in ways that can be beneficial for realizing the remote control of cargo ships.