The venturi duct on a duct wind turbine is the fastest-flowing duct and has the highest thrust force of all ducts. As the wind passes through the turbine rotor, it moves the rotor blades, generating a thrust force that is transmitted to the structure of the turbine. The thrust force generated can affect the overall performance of the wind turbine including affecting the structural stability and efficiency of energy conversion from wind to electricity. This paper will discuss the influence of thrust force on the design of duct wind turbines. Based on the simulation results, the wind flow velocity at the inlet and collector section increases to about 4m/s and will increase sharply at the venturi duct to 9m/s. The thrust-force generated by the venturi duct is the largest among the other ducts which based on the simulation obtained about 1.5N and is still within the limits of the structure used. © 2024 IEEE.