College students' image feature code is an identification code for students' identification and management. Students can query their own image feature codes through the Higher Education Network. First, log in to the higher education website and enter the correct user name and password to log in. Then, click the student status query to enter the higher education information page. On this page, find the link of your school and click to enter the school page. On the school page, you can find and click the option to view the image signature code.