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In the construction engineering and intelligent visual assembly BIM has been widely used in the assembly process, building BIM for high precision control of assembly cost of construction, in the construction of the assembly process is intelligent vision in order to achieve the high-precision control of the construction process. The assembly quality of the current method is used in the construction of the assembly and assembly cost control of construction. The quality is not up to the requirements of developers. Therefore, a kind of architectural vision and BIM assembly process intelligent control method based on high precision. Firstly using BIM technology through the computer virtual assembly building site layout, building BIM building assembly model, and in the BIM assembly building mode All the information input, construction fittings and construction projects related to the type in the second, plus time parameters and cost plan in each construction member BIM building on the assembly model, assembly model construction 5D BIM, virtual construction optimization of the completion of the 5D BIM building assembly model, adjust the schedule and cost, and then BIM and intelligent the combination of visual technology, 3D visualization instruction operation to achieve the whole building assembly process. The experimental results show that the proposed method of building assembly cost, quality control of high precision.