In view of the earthwork construction with long duration,heavy and complicated construction conditions,and earthworks cannot be verified,using virtual reality technology to simulate the process of its construction. As a hydropower project for an example,the terrain model using AutoCAD and 3DS Max combination of building,equipment model in 3DS max using entity model building. In the transporting section,will be built in3 DS max key frame together with the model of import in the EON and set the parameters of the animation node;In digging scene,using multiple place nodes to control of the excavator digging operation; Interaction part of the scene,using the built-in mouse node( Click Sensor) and keyboard nodes( Keyboard Sensor) implementation scenarios and user interaction. Research shows that through excellent virtual reality software EON to apply virtual reality technology in earthwork construction simulation stage,found possible quality problems and potential safety problems in engineering,through the simulation can be more perfect earthwork construction. Verified,earthwork construction of virtual real earthworks has certain guidance and reference value. In view of the earthwork construction with long duration, heavy and complicated construction conditions, and earthworks can not be verified, using virtual reality technology to simulate the process of its construction. As a hydropower project for an example, the terrain model using AutoCAD and 3DS Max combination of building, equipment model in 3DS max using entity model building. In the transporting section, will be built in 3 DS max key frame together with the model of import in the EON and set the parameters of the animation node; In digging scene, using multiple place nodes to control of the excavator digging operation; Interaction part of the scene, using the built-in mouse node (Click Sensor) and keyboard nodes (Keyboard Sensor) implementation scenarios and user interaction. Research shows that through excellent virtual reality software EON to apply virtual reality technology in earthwork construction simulation stage, found possible quality problems and potential safety problems in engineer ing, through the simulation can be more perfect earthwork construction. Verified, earthwork construction of virtual real earthworks has certain guidance and reference value.