Officials told students they could return if they changed clothes, but some owned only one suit or lived too far away, the Targum's report stated.
School administrators soon apologized after the incident, PennLive reported.
"We regret that the actions at last week's career fair adversely affected some of our students and cast a shadow over the success we have achieved in helping our students secure more meaningful internships and jobs," Dean Lei Lei said in a statement released on behalf of the school's administration.
School's administrators will be revising the dress code guidelines, and plan to ask for student input.
"I didn't go to show off my style, I went to show my skills," Chen told the student paper.