To enhance the operational efficiency of military command and crew performance, thereby strengthening overall military combat effectiveness, this study focuses on vehicle-mounted command cabins within military equipment. It explores the integration of visual perception theory into the design of vehicle-mounted command cabins. Aiming to fulfill crew requirements for cabin environment based on the characteristics of the human visual perception system, this research attempts to establish a comfortable, efficient, and harmonious relationship between the crew and the cabin environment to enhance work efficiency and augment combat soft power, providing a reference for future command cabin design. In this study, the first phase investigates the relationship between the crew and the spatial environment of the command cabin, exploring from the perspective of vision and cognition, and analyzing factors in the cabin environment that affect crew psychology and behavior. During the second phase, integrating environmental psychology, cognitive psychology, and ergonomics, the authors propose holistic, comfortable, experiential, and efficient design principles for the command cabin environment based on visual perception theory, offering theoretical support for later design practices.