The writer intends, in this article, to clearify the phases of managerial problems in small and medium business in order to analyse them. We want to investigate the reproduction-process of a small capital objectively, that is to say, we would examine how the smaller enterprises perform their managerial activities under the pressure and exploitation of big powerful monopolies. Then, there can be pointed out a great deal of and various kinds of managerial problems in smaller enterprises. So at the first time we set our analytical viewpoint at the inner side of an individual smaller firm. We pick up the problems in accordance with the movement formula of an individual capital G-W {A^^Pm・・・・・・P・・・・・・W'-G'. The phases of the "inner-side problems" are the matters related with (A) Finance, (B) Preparation, c Production, (D) Sales, and (E) the Organization of Business Management. Next, we advance our viewpoint into the economic structure problems of small businesses, the phases of which arises from the difference according to (A) Production-Section they belong, (B) Conditions supporting their existence, and (C) Sizes of their managerial units. At last, we must clearify the place and significance of the managerial problems in small and medium business in the development of our economy. This article is nothing but a bird's-eye view of the aspects and phases of the various questions concerning management in the smaller enterprises.