Abstract: Based on the petroleum pool-forming dynamics simulation and evaluation,the more geologic factors have been considered,such as quick basal geologic data modeling,querying and editing for the simulation,the primary migration model,the multi-factor oil and gas accumulation simulation and ray-tracking oil and gas migration method and so on.The geologic models have been made,and transferred farther into mathematic and computer models.Therefore,the system can be acted as 3D visual analytic tool for oil and gas migration and accumulation.The system has been made application for the Lishui Sag,the East China Sea Basin,this simulation result has been approbated for integrated research team of the Lishui Sag,the East China Sea Basin.