Drapers editor Lauretta Roberts helped judge the award along with a panel of experts from fashion design and buying including chair of the Colleges Council Ann Tyrrell, designers Erdem Moralioglu and Jens Laugesen, Selfridges senior buyer men's contemporary Gary Edgley and Browns head of buying womenswear Erin Mullaney.
The judges assessed each college portfolio on presentation, design content and illustration.
Drapers' editor Lauretta Roberts said: "While the quality across the board was extremely high, every one of the six judges picked Kingston as their number one choice so it was a most deserving winner. The university really did its students proud with a highly professional presentation that showcased the breadth of talent fantastically."
Highly commended prizes were awarded both to the London College of Fashion and Edinburgh College of Art.
More than 20 colleges attended the open day on April 8, which is designed to bring them together with industry decision makers from retailers and suppliers, as well as designers. The event is now in its 16th year and this year was moved from the BFC's headquarters in Portland Place to a larger venue across the road at the Royal Institute of British Architects.