Emma has previously served as the face of fashion firm Burberry and cosmetic company Lancome, and she recently teamed up with fair trade corporation People Tree as a creative advisor and helped in designing two clothing ranges.
Now, the 22-year-old insists she is taking a step back from the industry in a bid to concentrate on her chosen profession - acting.
"It was fun when I was younger, but I don't think it will be quite as much part of my future, honestly. Now that I know acting is the thing I want to do, that's more where my passion is and my focus is," contactmusic.com quoted Watson as saying.
"I still find fashion very interesting, but it's quite full-on. I am finding more and more that I don't want to wear a dress and heavy make-up. I want to wear jeans more. It's quite intense to do it all the time," she said.