A dynamic analysis tools integration model based on geo-workflow is presented, through the analysis of the sea battlefield environmental analysis process. Geo-workflow is a new technology to manage spatial processes, but its methodology, especially scheduling of data flow, is till weak. In the paper, the traditional workflow model is extended and a modeling method of environmental analysis data flow is presented; then, active network chart is extended and visualization modeling elements of data flow are provided; at last, the integration data model supporting all kinds of essential factor is established. Practice shows that the sea battlefield environmental analysis system based on this integration model can better support diversity of combat modes, scalability of analysis tools and automation of analysis processes.