Abstract: The author presents a viewpoint concerning the formation of psychological process, in which human linguistic system is regarded as a participant in the formation of new connections. Typical to the activity of the higher portion of human nervous system, the ehtire development of psychological process in its high order is shaped through paths of complicated functional system. It is activated under the strong participation of his language.The form of social existence and tool of linguistic communication of children not only fill up their consciousness With new content but also give rise to new functional system and new form of psychological life.This viewpoint has,been Confirmed by many psychological as well as psychophysiological studies. These Studies have revealed very important the characteristics of the development of human psychological process, and statted to look upon what is commonly regarded as 《trait》 of immediate psychological life in the light of Some complicated functional system, a result of social development of lengthy iperiod.