Abstract: Based on the analysis of influencing factors of rock electrical properties, this paper proposes using orthogonal analysis to identify sensitivities of the influencing factors, using orthogonal matrix design to analyze horizontal associations of the influencing factors, and using variance component and trend analysis approaches to quantitatively evaluate the sensitivities by which dominant and secondary factors can be distinguished. Case study from selected core samples shows that rock electrical properties exhibit different sensitivities to different influencing factors, and the sensitivity analysis result is in accordance with that of the numerical simulation of rock electrical properties