The amphitheater of Ardabil Tejarat bank designed and constructed in the 170 m2 area. We try to design a functional and regular cubic space in the heart of an official building. In according to the client's demand and to give identity to space and designing ideas, introduce the identifiers of this organization on walls and the abstract from the bank's logo considered. To create the focal point with the regular gray texture in contrast with side walls that covered by discontinuous geometrical lines and cyan holes on main wall. the luminous broken motions in the middle of the ceiling and waved forms in the longitude wall of the space also strengthen the focus of the audiences on the main point and axis of space. Lighting of space adjusted and executed hidden by using sharp edge, under woven forms on the ceiling and wall and to provide the amount of light that space needs. Partitions of walls and ceiling were creating by these purpose: 1. Making the space acoustic by creating porous forms in the side walls and ceiling. 2. Defining secondary access to the openings from the partitions. 3. Locating and hiding technical and electrical adjustment in the holes of wall and ceiling. Proper use of the limited height of the space to determine the suitable slope of the floor and the roof to increase efficiency and improve its quality. The main structure and frame of the space is constructed by ironwork based on the form and coating by MDF panels according to the design; the main material of the walls is white and cyan MDF sheets and gray and sky blue composite panels that matched with organization color of Tejarat bank.