Dense pore throats and high content of clay minerals cause serious potential sensitivity damage to shale gas reservoirs. However, during industry standard method experiments, big errors appear since it is hard to measure the liquid flow for the ultra-low liquid permeability and ultra-slow movement of liquid in shale cores. A new way based on gas permeability method is raised in this article to evaluate liquid sensitivity of shale. It is not necessary to measure fluid flow rate at outlet of the core holder, which reduce test period and experimental error caused by ultra-low fluid permeability. Besides, liquid is adopted during industrial standard tests, while gas method conforms more to the fact. Experimental results indicate that salt sensitivity of shales from Qiongzhusi formation is strong, and the experimental method lays foundation to evaluate other fluid sensitivity on the basis of gas permeability.