Beijing MVT Professional Service Co, Ltd is a high-tech enterprise which focuses on the field of communication services which are multi-manufacturer, multi-product, inter-district and multi-level. After the discussion and negotiation with the senior executives of the company, this case is designed to combine the three cultures together---family, school and army. The installation and post-sales team of the second floor is just like the army. They are professional, warm-hearted and careful, providing the customers with technology support. For this floor, we use the green color of army as the main color tone. The training and strategy department of the third floor is just like the school. They are growing with integrity and energy. For this floor, we use the blue and grey color as the main colors to create a tidy space. The fourth floor will help offer a space which is relaxing, safe, equal and warm. For this floor, we use orange and yellow as the main colors to highlight the warmth and happiness. The key staff for the company is mainly post-70s and post-80s. The post-90s also bring energy and enthusiasm to the company. The designing concept of family, army and school makes the space open and bigger. White furniture and extensive French windows and naked ceiling are used on the second and third floor. A colorful round-shape suspended ceiling is used for the tea room. This makes the space more active and makes the mind freer.