This paper deals with first Dresden Hoftheater by Gottfried Semper. The purpose of this paper is to clarify a part of Semper's architectural manner which he acquires in response to the main theme of Thearer Reform. Therefore this paper points out the architectural composition of this theater on the basis of analyzing the relation between blocks and surface. Semper acquires a unique architectural manner, making a concession to a request for the traditional form of court theater. Semper gives up relating surface to the inside of blocks and then he shows a rigid simple shape, covering blocks with autonomous surface.