Although large effort has been done during earth-rock filled dam construction, the artificial-based management is hard to fulfill the need of large-scale mechanized construction. With transportation monitoring system, earth move vehicles can be overall monitored. Through analytical calculation, state parameter of each controlling unit of transportation system can be obtained. On the other side, simulating model is built and calculating program is written based on the specific analysis to transportation system. When the site condition changes during construction, simulating parameters are seated and simulating calculation is done. According to the results, sensitivity analysis is done to different machinery allocation schemes. Then, combined with the site condition, best scheme can be chosen and real-time scheduling of machineries can be realized. The result is applied in the construction of Nuozhadu hydropower station project, providing scientific basis for the optimal scheduling of field machinery allocation.