In this study, we aimed to integrate an ultra-high-strength gradient system (15 gauss/cm) on a 3T scanner and to demonstrate its feasibility by employing diffusion tensor imaging (DTI) on dedicated anisotropic diffusion fibre phantoms. Two DTI experiments were performed to explore the feasibility of this gradient system, i.e. comparisons of gradient strengths and number of averages. Our results demonstrate reasonable SNR and diffusion contrast acquired on this system using pulsed gradient spin echo diffusion weighted scans could provide useful information. Consistently, it also suggests higher gradient strength could be beneficial to improve the quality of diffusion MRI experiments and its ability to resolve fibre orientations, especially when higher b-values are used.