Abstract: Directed Forgetting has been one of the most active domains in psychological studies in China in the past two decades. With psychologists' unceasing efforts, the theoretical construction of intentional forgetting tends to become mature gradually. Researchers have proposed the coding theory, the retrieval inhibition theory and the discriminative inhibition theory to expound intentional forgetting. In the developmental research of Intentional forgetting it is found that the cognitive inhibition ability is acquired by after-birth development and grows as one's age increases; the test method, test difficulty and the testing materials are all factors affecting the test performance. Besides, with the deepening of the intentional forgetting research, the intentional forgetting research paradigm can probably be employed as a new research method to the research of false memory,self-reference effect and emotion. With the renewal of research method, the research fields of intentional forgetting are constantly expanding