Scenic public identity as an indispensable part of people's work life, in a rapidly changing modern society is playing an increasingly important role. Whether or identify employees who need, there will be a common feeling that everyone identifies everyday lives in a taste atmosphere. When traveling, there are urban transport system to protect the identity of people and vehicles quickly and safely shunt; when tracing and friends, community-oriented identification system to guide people traveling smoothly; mall identification system efficiently and accurately triage different shoppers; vegetables market system also clearly identifies the various food categories. It can be said, as long as people exist activities take place, there is identity. And identity, but also with the acceleration of the process of human civilization has been improved rapidly. However, the logo also in influencing and changing our lives. Because the warning and indicator systems to identify all the time for people to serve, guide, whether it is right or wrong. As an intersection after the traffic signs no identification, one might regularly with vehicular traffic and grab Road intersection full of security risks, the establishment of traffic signs marking, traffic intersection will become a safe and orderly. Logo, invisible changed our habits. For this reason, we should identify around enough attention.