The invention provides a remote monitoring system of a marine device based on an intelligent mobile phone terminal. The system comprises a marine communication terminal, a shore station communication terminal, a GPRS DTU device and a remote mobile phone monitoring terminal. The GPRS DTU device is connected with the marine device, and the GPRS DTU device is connected to the Internet through the shore station communication terminal. The marine communication terminal is used for forwarding working condition data and a control instruction of the marine device and carries out data interaction with the shore station communication terminal in a manner of base station and Internet communication. The shore station communication terminal carries out data interaction with the marine communication terminal, receives the working condition data forwarded the marine communication terminal and sends the control instruction. The remote mobile phone monitoring terminal carries out data interaction with the shore station communication terminal through the Internet, checks real-time or historical working condition data of the marine device and sends the control instruction. The remote monitoring system of the marine device based on the intelligent mobile phone terminal realizes multi-person long-distance real-time monitoring at any time and any place, no specially-assigned person is on duty in a fixed shore station communication terminal all day long.