Analysing the chemical reaction rate law between acid and rock is the core issue in the research of acidification and transformation technology of carbonate reservoirs. The mineral composition of rock is an important influence factor of acid rock reaction rate. Exploring the influence of rock mineral composition on the acid rock reaction rate not only helps to reveal the competitive reaction mechanism between various types of minerals, but also can optimise the reforming ideas of various types of carbonate rocks. Combining X diffraction analysis and acid-rock reaction experiments, the reaction rates between acid and rock under different mineral compositions and content compositions were quantitatively tested. The results are as follows.①Among the various types of carbonate rock minerals, calcite and dolomite are positively proportional to the reaction rate, while other minerals are inversely proportional to the reaction rate; calcite has a faster reaction rate than dolomite. ②In tuff, when the content of dolomite is 0%~15% and 15%~40%, the reaction rate of acid rock decreases by 51.4% with the increase of calcite content. When the content of other minerals is 0%-15% and 15%-30%, the acid rock reaction rate decreases by 61% with the increase of calcite content. In dolomite, the acid rock reaction rate increased by 23% with the increase of dolomite content when the calcite content was 0%~4% versus 4%~8%. When the content of other minerals is 0%~15% and 15%~35%, the acid rock reaction rate decreases by 99% with the increase of dolomite content.