What did the principals wear at the graduation ceremony? Golden clothes and yellow tassels.

Is the principal's uniform, you can call the principal academic degree evaluation committee uniform, tutor uniform.

Tutor's clothing was added to the hat robe in the18th century, and it was used by the principals and degree tutors of degree-conferring units when attending thesis defense meetings, degree-conferring ceremonies and various celebrations. The instructor's clothing also consists of four parts: a square black degree cap, a tassel on the cap (yellow), a degree robe (mainly red with black lapels) and a hanging cloth.

At the degree awarding ceremony, the president, President academic degree evaluation committee and the degree consultant dressed as a tutor first put tassels on the degree winners from right to left, and then solemnly awarded the degree certificates. The grantees should bow to them and express their gratitude.

Extended data:

China's academic degree cap was made according to the decision of the State Council Academic Degree Committee, which not only has the characteristics of China, but also conforms to the world practice. According to international standards, hoodies in China are also composed of four parts: academic cap, tassel, academic gown and hanging cloth. The styles and colors are roughly the same as those in the world.

The only difference is that the cuffs of cap and gown are embroidered with the Great Wall pattern, the buttons in front of cap and gown are black "Ruyi" buttons made of traditional China cloth, and the triangular pocket-shaped curtain of pullovers is made of brocade woven with China national patterns, which is different from the national characteristics of other countries.