Abstract: The problem of the use of the simulation methods in psychologic is discussed:(1) The reasons for using this method, its possibility and practical meaning are given. The author believes that the unity of nature is the theoretical premise for the possibility of investigation and that this kind of investigation will benefit the advance of both technology and psychology.(2) The author takes the analogy between the recognition of visual patterns by the machine and by the human being as an example to demonstrate the above point of view.(3) It is important in simulation methods of investigation to clarify related theoretical and philosophical problems. The author considers that dialetics is needed to handle problems such as the diversity and connection between phenomena, the relationship between man and machine and the use of mathematical methods in psychology.(4) The way for an healthy development of the simulation methods of investigation and its prospects are also discussed.

Key words: NULL