Agents brought in numerous cardboard boxes to load up files from inside the school at Haldeman Shopping Center near Roosevelt Boulevard.
They would not disclose what evidence they are seeking.
DPT offers courses in various trades for high school graduates and international students.
That search comes on the heels of raids at Philadelphia original charter school, the Community Academy in Kensington and Fairhill Community High School in North Philadelphia.
RELATED: Read more about the charter school raids.