UI design refers to the overall design of human-computer interaction, operation logic and beautiful interface of software. Literally, it is two components: user and interface, but in fact it also includes the interaction between user and interface. Interface design is not a simple graphic design, it needs to locate users, use environment, use methods, and design for end users. The standard for testing an interface is not the opinion of a project development team leader or the result of voting by project members, but the feeling of end users. Therefore, interface design should be closely combined with user research, which is a process of constantly designing satisfactory visual effects for end users.