Abstract: This article analyzed and researched on the current situation of bridge construction training in our country, put forward to apply computer simulation technology to the bridge site construction personnel training, designed Three-dimensional Simulation Training System, introduced the structure, function and characteristics of the System, described the design idea and technical route of the System. The experimental result showed that the Threedimensional Simulation Training System for bridge construction could simulate the concrete operation and all kinds of faults, be not affected by the weather and other adverse conditions, shorten the training time, save the training costs. The bridge construction operator could exercise through the System to control the process of bridge construction, accumulate operation experience. It was of great significance to ensure the safety of bridge construction.