Large ship berthing system

The utility model discloses a large ship berthing system, which comprises a machine A positioned in a board, a machine B placed in a prow and a portable processor carried by a pilot. The machine A includes a first microprocessor, and an AIS (Automatic Identification System) receiving module, a first wireless data transmission module, a first DGPS (Differential Global Positioning System) module and a WIFI module connected with the first microprocessor; and the machine B includes a second microprocessor, and a second wireless data transmission module and a second DGPS module connected with the second microprocessor, wherein the first wireless data transmission module is communicated with the second wireless data transmission module, and the portable processor is communicated with the WIFI module. According to the utility model, the DGPS is combined with the AIS, so that the large ship berthing system has strong object searching capability, can be used in multiple harbors, and can accurately reflect practical be