Abstract
With more than 10 years’ rapid development, Chinese stock market has had considerable size. The purchase of stocks has become one of the investments. However, the transaction is not only capital but also knowledge inputs. It is affected by psychological factors. The author investigates the common psychological factors of transaction and finds that: on the one hand, people are influenced by personal tendency, temperament, character, and so on. It is different from the attitude of transaction, habit, manners, and ways and methods; On the other hand, it has notable differences on investors’ age, sex, economic power, risk, investment, analysis, information and patience. This issue is to help investors realize their own psychological phenomenon of investment in order to understand existing problems in the transaction, and get through these psychological factors brought negative impact. Investors can get a better profit.