Technic characteristic of the bogie for one exported broad gauge locomotive was introduced. Dynamic model of the locomotive transporter was established based on SIMPACK software, laying stress on analyzing how the yaw damper and parameter variation of primary suspension would affect the stability, straight and curve negotiation of the transporter. Through the optimizing analysis of the parameters, it was found that getting rid of the yaw damper led to better performance, and it was possible to adopt the primary suspension of SS8 locomotive as that of transporter bogie, with safety request fulfilled for transporter passing different railways.