In this paper a control engineer's point of view of the Large Space Structure (LSS) problem is presented. A definition of a "large" space structure from a control engineer's standpoint is presented along with a discussion of the various factors which drive the control problem. The interaction of the controller with the structure to be controlled is explored to point out the role of each disipline in solving any practical LSS problem. The ways in which they can contribute to a successful system are presented. Finally, the role of the optics engineer as both system user and technology provider is discussed.