A trailing suction dredger analog simulation system comprises, a dredging operating platform, a navigation operating platform, a virtual reality unit and a simulation driving unit. The dredging operating platform provides left and right dredging control console cabinets to simulate actual equipment operating environment; and the navigation operating platform simulates actual navigation operating environment. The dredging operating platform and the navigation operating platform are connected with industrial control computers and PLCs through network equipment, and collect signals of buttons and indicator lights through the PLCs. The signals collected by the PCLs are transmitted to a real-time database of the system through a TCP/IP network, and the simulation driving unit performs analog computation according to the collected signals and feeds back a computation result to the real-time database. An SCADA system, a DTPM system and the virtual reality unit perform data interaction with the real-time database through an API interface. The virtual reality unit adopts eight-path fused image signals to form seamless and consecutive frames, and provides a display carrier for virtual reality of a trailing suction dredger. Simulation of a construction environment, an operating environment and a construction process of the trailing suction dredger can be realized.