Based on Simulink, a toolchain for rapid prototyping with OBSIDIAN flight controller was established, and standardized Simulink Library module and automatic embedded code generation template were formed Users can build upper layer application software based on common input and output signal bus, frequency division scheduler, state machine, navigation module, remote control and telemetry module library, and quickly complete private flight control engineering The tool chain supports users to carry out MIL, SIL, PIL, HIL and other multi-level testing and verification. This tool chain is particularly suitable for V-shaped development processes, effectively improving research and development efficiency.