2) From the research point of view, the existing literature focuses on individual cognitive bias in repeated discussions and the existence of the test, the lack of the organic integration of a variety of psychological bias up a unified framework and research system, while the existing cognitive biases involved, there are more repeat of the same cognitive biases are often due to different research scholars, research data and market conditions have been given different names, a number of cognitive bias is often referred to with different names and their meaning and its significance is similar, the lack of a unified classification system and naming standards would be a systematic cognitive bias, cognitive bias based on the establishment of a unified pricing model, is an important future direction of behavioral finance research.