The deal involves a series of 10-second credits shown at the beginning, middle and end of each programme.
The credits will be interactive and viewers will be able to interact with the Asos website via text.
The ads, created by Addiction, feature a highly stylised model walking along a catwalk with the letters ASOS in lightbulbs at the back of the set. The deal was negotiated by Nick Robertson, Asos.com chief executive, and Guy Martin, IDS associate director of commercial development.
The campaign starts next Monday and is supported by an outdoor and print campaign, alongside an online presence at www.livingtv.co.uk.
America's Next Top Model was previously sponsored by John Frieda and is the first TV activity for Asos.com, an online retailer that helps users copy celebrity fashions. It is designed to appeal to the core audience of 16 to 34-year-old women.