As we all know, software is a tool, and the exchange of information between software and people is through the interface. Therefore, the usability and aesthetics of the interface are very important, which requires making good use of the principles and methods of human-computer interface design. Generally speaking, the following issues need to be considered when completing the design of a software human-computer interface: 1) Overall interface layout design, that is, how to make the layout of the interface more reasonable. For example, we should put buttons with similar functions together and distinguish them from buttons with other functions in terms of style, so that users will find it more convenient to use. 2) Operation flow design, that is, reducing the user's workload and improving work efficiency by designing the workflow. For example, how can we enable users to complete an operation with the fewest steps? Using other software, it takes 50 mouse clicks and a distance of 20,000 pixels to complete the operation, while using your software, it only takes 25 mouse clicks and a distance of 5,000 pixels to complete the operation. Then, the user's work efficiency is four times higher than that of other software, so the user will naturally choose your software. 3) Work interface comfort design, so that users can work more comfortably. For example: What kind of main color scheme should we use to allow users to work for the longest time without feeling tired while in a pleasant mood? Red: passionate, glaring, and prone to causing anxiety. Blue: calm, technological, and comfortable. Light colors: clean and bright, but more stimulating to the eyes, easily causing fatigue during long periods of work. Dark colors: quiet, sophisticated, and less stimulating to the eyes. Microsoft's successful use of light gray as the main system color scheme and its coordinated icons has led to a standardization in all international software products, which is one of the important factors in Microsoft's success. 4) Human-computer interface design is not simply about packaging. The success of a software is inseparable from its perfect functionality and careful debugging. However, the overall planning before any product development will also be one of the key factors in human-computer interface design. During operation, we will not only focus on the aesthetic and practical performance, but also consider the underlying technical principles of the product in the planning, optimizing and reflecting the soul of a software product. 5) We need formal understanding and the implementation of investigations. The innovative shell colors of MAC have driven the personalization of all machines, but Acer also released a dark green case before, but it was a failure. There are two reasons: one is that the design was inadequate, and the other is that the timing was bad, as the public's taste wasn't sophisticated enough at the time. We need to conduct a formal analysis and planning of our partners' needs for the human-computer interface design to be implemented correctly. As can be seen, human-computer interface design is a highly interdisciplinary subject. It not only utilizes computer technology but also relies on theories and methods from psychology, cognitive science, linguistics, communication technology, and even drama, music, and art. Therefore, to achieve a user-satisfying interface, we need to thoroughly study human-computer interface design and grasp its essence.