Construction monitoring method and system based on three-dimensional simulation

The invention provides a construction monitoring method and system based on three-dimensional simulation. The method comprises the steps of acquiring construction information, wherein the construction information comprises the spatial position of a design unit, the information of the design unit, quality data and rolling information, the quality data include material data, moisture data, temperature data, density data, concrete temperature data and compactness data, and the rolling information comprises rolling track and the number of times of rolling; generating a first three-dimensional simulation module according to the construction information; cutting the first three-dimensional simulation module to obtain a second three-dimensional simulation module; acquiring the information of a construction unit to be monitored according to the second three-dimensional simulation module to be used for monitoring engineering quality. By the adoption of the construction monitoring method and system based on three-dimensional simulation, engineering information can be obtained in detail in a visualized mode, the construction unit can be positioned accurately, and then engineering quality can be controlled accurately and engineering progress and engineering quality can be guaranteed.