Abstract: To predict the lithology of lacustrine carbonate rocks is the key of predicting its favorable reservoir distribution. Based on the core data, thin sections, well logs and test information, and taking sedimentary facies as limited ranges, the rock?electrical identification model for the carbonate rocks of Es4 in Shaojia sub?sag is developed by means of the types of sedimentary facies. The study shows that in the Es4 of Shaojia sub?sag, several categories of carbonates occur in this area, such as reef dolomite, bioclastic limestone, calcarenite, oolitic limestone, micrite limestone, packstone, gypsum limestones, etc., and the main sedimentary types are reef, nearshore limestone bank and infralittoral limstone bank. The rocks and their logging characteristics in each facies are collected, followed by making lithology logging interpretation model for each facies. These models are applied to some well sections in this area, which indicate good results from thin?section verifications in identification accuracy and favorable carbonate reservoir prediction