The 30-year-old reality star will reportedly fly to New York this week to film her section on the Lifetime show alongside supermodel Heidi Klum.
A source told Life & Style magazine: 'She's going to be a guest judge on the show and is really excited.'
However, she could be headed for a showdown with Project Runway's fashion expert Tim Gunn, who criticised Kardashian on The Joy Behar Show last year.
He said: '[Kim's] pretty, but she's a poseur. I find that when she's static and still, she has an attractiveness. I find that when she's moving, it all goes away from me.'