On the show "Total Bellas", Bella announced her decision saying she wanted to explore some new arena in her life, reports foxnews.com.
"The (European) tour was good but I feel like I'm too old for the travel, the travel was really rough. I was like, 'Why am I doing this? I don't feel good.' The girls are doing amazing things over there. I really am ready to hang up the jersey, I can say it fully."
The 35-year-old now happily wants to put her WWE jersey away to focus on other things.
"It's making me realize I am ready to fold the jersey and put it away. I'm ready to put the kicks aside and I'm ready to take Nikki Bella into a different direction."
Bella has been in the ring for 12 years. She made her WWE debut back in 2007, her SmackDown debut in 2008 with her twin sister, Brie Bella, and has won the Divas Championship twice.
The pro athlete is going to focus on her other businesses: a clothing line, wine label and a new podcast with sister Brie.