The information system project must be built with the right processes as especially the project management. The Right Management Project will create a good and right product. And also will reach optimal satisfy users. So we must management the project very well. In management project have triple constraints that are scope, time and cost management. In this research manage scope, time and cost of project management plan to develop manufacture information system with study case on a company that manufacture plastic bag because the stakeholder want to know how complete the application will be built and how long it will be take and how much it will be cost to develop manufacture information system. It is done to minimize project failures before start to develop. So the researches focus to manage scope, time and cost of project management to develop manufacture information system. This paper present outputs from our research such as product scope, project scope, work breakdown structure (wbs), project duration which are equipped with predecessor and milestones, Gantt chart tables, as well as project cost estimates.