Abstract: The organization strategy of first, third and fifth grade pupils was stu-died. The results showed: 1.There were two major periods in the development of organization stra-tegy in primary school pupils. The first was production deficiency period.Thesecond was mature strategy application period. The first period could be devi-ded into two subperiods. One was coupled with mediational deficiency. Theother was not. 2.There were three reasons for the subject's production deficiency: (1)Lack of awareness of the functional relationship between memory means andgoals; (2) Lack of clear understanding of the importance of strategy and pre-ference for familiar and simple strategies that proved to be less effective; (3)Relatively poor knowledge base of the memory materials.

Key words: organization strategy, production deficiency, mediational deficiency, development period, reasons