In the process of immersed tube tunnel construction，floating and sinking are among the main priorities carried out underwater.The current construction technology cannot adequately or accurately control the floating and sinking processes，because the construction is carried out underwater.The result of this is the work must be done by hand.The visualization system of immersed tube tunnel construction based on remote real time monitoring is helpful in assisting with the measurements in construction sites and checking the results of diving operations for the distance of abutting points.This makes this visualization system greatly significant and useful in maintaining the safety and management of the construction in the immersed tube tunnel.The construction is unique because of its floating and sinking processes.In this paper，a series of key technologies are employed and integrated，including the establishment of the measuring point coordinate system making use of GPS and accurately converting coordinates，the use of the PSM configuration，visualization technology based on VTK，Autodesk 3DS Studio MAX，model driven data，Microsoft SQL Server Express，and others.A three dimensional visualization system of immersed tube tunnel construction based on remote real time monitoring is designed and developed by combining these key technologies.The system includes a GPS testing system in the pipe section and a dip angle system in the construction site for the processes of floating and sinking.The database of Microsoft SQL Server Express is included in the control center，along with the SOAP Web Service protocol communication.More specifically, the system can display the real time situation of a section of pipe on the construction site, inquire about a great deal of information concerning the pipe section，and play back any time sequence of the construction process.The presented visualization system realizes the function of remote real time monitoring for the tube’s floating and sinking，and it is successfully applied to the construction of the Haihe River immersed tube tunnel engineering in Tianjin.Its results closely match the information from the construction technical personnel and can reflect the pipe section’s real time situation and tendency in the toleration of the engineering error range. In addition，the system provides a guarantee for the safety and efficiency of the construction and can be further applied to related engineering projects.