The three judges scored it 100-89, 100-90, 99-91 to the Ireland star, in a fight where the result never looked in doubt and on an historic night for women's boxing at Wembley Arena.
Taylor retains her WBA, WBC, WBO, IBF and The Ring titles, extending her unbeaten record to 17 professional fights since claiming the London 2012 Olympic gold medal.
From the very first bell of the main event, a focused Taylor blitzed Gutierrez with flurry of punches forcing her opponent into the corner. The Spaniard retreating, a little overawed by the occasion and stunned by Taylor's speed in the mandatory challenger's first professional fight outside of Spain.
A heavy right seconds into round 1 from Taylor made Gutierrez stagger and set the tone for what was to come, the Irish boxer never looked back, working through her repertoire, the superior fighter in every respect.
The biggest surprise was that Gutierrez managed to last the full ten rounds, allowing herself a relieved smile at the bell.
"I'm very very satisfied, I thought it was a great performance," Taylor said right after the fight, "she was very tough, I was definitely trying to get her out of there but she just kept firing back, she's obviously bigger, stronger than I am, but unfortunately I couldn't get her out, I would have loved for it to have gone to a stoppage today but overall it was a great performance."
Rounds 1 and 2 starting with blistering pace from Taylor, hand speed and superior footwork meant the champ took complete control, finding the target with jabs and body shots almost at will, a single decent body blow was as good as it got for Gutierrez.
Round 3 and the fight could easily have been stopped, a heavy right-left combination rocked the Spanish boxer and Taylor moved in for the kill, somehow Gutierrez survived a brutal onslaught to the bell.
Gutierrez was on the canvas in round four after feeling the full force of a jab and a punishing left from Taylor, the count coming after the bell.
But the Spaniard got up and got back out for round 5, taking some serious punishment including a clean right and Taylor landing that lightning left hook at will, the Bray Bomber in full flow.
Rounds 6 and 7 were more of the same, Taylor working through her full register with Gutierrez somehow staying on her feet, incredible endurance from the madrileña.
The one worry from Taylor coming into this fight was Gutierrez' punching power, that capability to strike with a single knock out blow, but it never looked likely, Taylor hurting her opponent with uppercuts, combinations and some of the cleanest, classiest boxing you'll ever watch.
When the final bell went the two fighters embraced and Gutierrez could do nothing but smile proudly for making it that far, leaving some of her blood on the back of Taylor's shoulder.
Gutierrez can hold her head high, she has an incredible story of her own, having been attacked by her partner while pregnant in her 20's.
Now at 37 she works helping women suffering domestic violence and is involved in local politics.
She had a night at Wembley that she'll never forget, and refused to throw in the towel in a bruising encounter.
How it started vs How it's going
For Katie Taylor the dream goes on. 5 consecutive gold medals at the World Champs, 6 European titles, Olympic gold at London 2012, undisputed lightweight world champion, two-weight world champion,
Taylor has been an Irish household hero since her London 2012 Olympic gold victory, and has developed into one of the best pound-for-pound boxers ever to step into the ring, adding layers to her legacy with every fight.
"She's the greatest to ever do it in women's boxing"
Taylor's manager Eddie Hearn is full of praise for the Bray fighter. "She's the greatest to ever do it in women's boxing and she's just starting out.
"She's a global star, she's done it all but we've got so much more to do with Katie Taylor and so much more to do with women's boxing."
Hearn mentioned a list of possible opponents for Taylor next year with Amanda Serrano at the top, "if she ever stops ducking us," he adds.
Before this bout her promoter Hearn released a photo of the message he received in 2016 after the Rio Olympics, from Katie Taylor.
She's come a long way since then.