Abstract: Studies of attitude are an important part in social psychology. A central theme in recent researches on attitude is the distinction between implicit attitude and explicit attitude. APE model proposed by Gawronski and Bodenhausen pointed out that implicit attitude and explicit attitude had their own underlying mental processes. Implicit attitude is based on associative processes and explicit attitude is based on propositional processes. From the perspective of the APE model, the mutual interplay of the two processes leads to several specific patterns of changes in implicit and explicit attitude. The article introduced theory and main content of the APE model, and then gave comments on the model

Key words: attitude change, implicit attitude, explicit attitude, associative-propositional evaluation (APE)