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In this paper the development of the hardware in-the-loop simulation (HILS) test bench for the control system of dry dual clutch transmission (DCT) is presented. Firstly, the dynamics differential equations for a serf-developed 5-speed dry DCT under different operation conditions is established, and a real-time simulation model for DCT vehicle is built with MATLAB/Simulink/Stateflow/RTW and dSPACE software/hardware system. Then the hardware of transmission control unit (TCU) for dry DCT is made with corresponding software developed and loaded into TCU to realize the online calibration and signal measurement for the control parameters of TCU. Next, the dual clutch and shifting actuator for test bench is developed and integrated with the real-time simulation model for DCT vehicle, and so the construction of HILS test bench for dry DCT control system is completed. Finally a continuous acceleration test at different throttle openings is conducted on the test bench. The results show that compared with real vehicle testing, the HILS test bench developed for dry DCT control system not only has better test repeatability but also can quickly and effectively verify the control performance of DCT under different operation conditions, and provide feasible test/evaluation platform for the development of DCT control system. [ABSTRACT FROM AUTHOR]