Aiming at the problems of long distance drilling tool transport system has high manufacturing cost,maintenance difficulty,the V- ribbed belt drive is introduced into the long distance drilling tool transport system,and the system mathematical model is established. The key components of the tensioning device are optimized through optimization design,and the optimization results are verified by the experiment method. The results show that through the research on optimizing the key parameters of drilling tool transport system of the tensioning device,the influences of the key parameters on vibration of long distance V- ribbed belt drive of drilling tool transport system in operation process. Finally,the optimized results are verified by the theoretical calculation and experimental,the optimized system operation process of vibration is obviously reduced,there is providing a certain basis for the follow- up product variant.