Based on the object-oriented modeling method, this paper studies coal wharf production system, and establishes a work plan deduction platform for wharf production planning using the system simulation software Simio. This platform, which is based on the wharf production planning and the real-time production data at the start moment of that plan, employs a friendly 3D animation form to dynamically deduce the operational process during the plan cycle, assists wharf production planner to analyze and evaluate the rationality of the proposed production planning, tries to find out the possible problems during the execute process and optimize it. Application shows that the deduction technology can be used to supply scientific help and support for wharf production planning making and has a widespread prospects for project practice.