Abstract: The construction of spatial information infrastructure is an important part of new infrastructure construction. With the rapid development of surveying and mapping technology, new surveying and mapping equipments such as remote sensing satellites, unmanned aerial vehicles and mobile survey vehicles are becoming more and more popular, Internet of Things technology is also widely used under the tide of new infrastructure construction. Based on this, this paper introduces how to use the ground moving measurement and oblique photography technology together to construct the 3D fine model, and introduces IoT data and BIM data into the model to realize the construction of new urban infrastructure construction model. On this basis, the application of new urban infrastructure construction model in bridge deformation monitoring is realized, which can be used for references in smart city construction.

Key words: new surveying and mapping technology, new infrastructure construction, new urban infrastructure construction model, fusion modeling