Abstract: The method of system modeling and simulation used in the current flap system development process can hardly meet the demanding of performance design indexes and the requirements of fast iterative design. Therefore, a multi-dimensional modeling and co-simulation technique for flap system operating scenario is proposed, which adopts the forward development idea of model based system engineering (MBSE for short) to explore the agile system modeling method of flap system. The SysML language is adopted to perform operating scenario analysis and 0-dimensional (OD for short) modeling, and Modelica language is adopted to model the 1-dimensional (1D for short) system of the operating scenario. Based on the FMI standard, the multi-dimensional model co-simulation of the flap system operating scenario is carried out, and the corresponding dynamic changes of the motor speed, and the force on the cross section of the actuator piston are obtained in operating scenarios, such as aircraft take-off and approach landing. The results show that the multi-dimensional modeling of the operating scenario of the flap system is realized, which bulids the foundation for the application of the forward R&D method in the equipment development process. The proposed technical method verifies the retraction time, maximum load and other indicators of the flap system in various operating scenarios, providing new ideas for the agile development and integration verification of equipment.