Luis Suarez scored on his 100th LaLiga appearance to help see off Girona 3-0 in the first top-flight derby between the two Catalan clubs.
A pair of own goals either side of half-time put Ernesto Valverde's side comfortably ahead before Suarez marked his milestone by wrapping up the three points.
Girona skipper Aday Benitez was the victim for the opener when he deflected Jordi Alba's strike into his own net to gift the league leaders an early advantage.
And it was another own goal which doubled Barca's lead after the interval as Aleix Vidal's classy cut-back wriggled in off Girona goalkeeper Gorka Iraizoz.
Suarez added the gloss with 20 minutes remaining to seal a sixth consecutive league victory, an impressive start they last managed in 2013-14.
While far from perfect at the back, Valverde's men now sit four points clear of second-placed Atletico Madrid.
24 - Luis Suárez has scored against 24 of the 25 sides he has faced in La Liga (87 goals). Predatory. pic.twitter.com/uEO04FGuCL— OptaJose (@OptaJose) September 23, 2017
The visitors had early joy down the right when Javier Mascherano found Vidal in behind, but the winger's attempted cross was crucially cut out by Iraizoz.
Marc-Andre ter Stegen next produced a superb one-handed save low to his right to deny Douglas, while Suarez's inability to find a team-mate from a cut-back at the other end cost Barca a certain opener.
Valverde's side did not have to wait long for the breakthrough, though, and it came courtesy of a huge slice of fortune.
After Iraizoz kept out Messi's free-kick, the veteran keeper was left with no chance from the resultant corner as Alba's speculative volley took a heavy deflection off Benitez on its way into the bottom-left corner.
Barca began to take control by the half-hour mark and only an in-form Iraizoz prevented them from doubling their advantage, the 36-year-old quick off his line to smother another chance for Alba.
Paulinho and Michael Olunga still found time to exchange wayward headers as an entertaining first half ended with the away side ahead.
The lead became 2-0 almost immediately after the resumption when Vidal reached the by-line and attempted to find Suarez, who hurdled the back-heel pass and saw it trickle in via Iraizoz's legs.
4 - Barcelona top scorers in La Liga 2017/18:— OptaJose (@OptaJose) September 23, 2017
Lionel Messi 9
OWN GOALS 3
Girona continued to pose a threat in the air with Douglas heading another opportunity high, while Olunga nodded straight at Ter Stegen just before the hour.
But any hint of a comeback was soon extinguished thanks to Suarez. The striker was put clean through by Sergi Roberto and clinically picked out the bottom-left corner to make it 3-0.
With their perfect league record still intact, Barca will take plenty of confidence into their midweek Champions League trip to Sporting CP.
Key Opta facts:
- Luis Suarez has scored against 24 of the 25 sides he has faced in LaLiga (87 goals).
- Suarez has is now eighth in the list of all-time Barcelona top scorers in LaLiga surpassing Rivaldo (86 in 157 appearances).
- Barcelona were also the last side to benefit from two own goals in the same LaLiga game, which they did on April 2014 versus Villarreal.
- Gorka Iraizoz scored his first own goal in LaLiga.
|Nadal´s best required against in-form Schwartzman|
|Moyes denies scouting Batshuayi and deals Chelsea blow with Carroll injury|
|BREAKING NEWS: Billy Vunipola out for 12 weeks|
|No one like Ronaldinho until Messi - Guardiola lavishes praise on Brazil great|
|Simeone shrugs off mentality concerns at Atletico Madrid|
|Going for gold? Neymar meets Beckham in matching jackets|
|You think I change my mind that quick? – Klopp faithful to No.1 Karius|
|Conte backs Morata to overcome disciplinary concerns|
|Lloris a doubt for Southampton game, confirms Pochettino|
|Pieters edges into Abu Dhabi lead|
|Klopp doubts Alexis Sanchez tug-of-war decided by money|
|Conte admits Pedro dived|
|Valencia tie down Torres amid Real Madrid, Barcelona reports|
|Bangladesh claim record win over Sri Lanka|
|Congratulations! Guardiola offers well wishes to United-bound Sanchez|
|Pele pulls out of London event amid conflicting health reports|
|Conte would be ´happy´ for transfer help|
|Kontaveit dumps Ostapenko out, Wozniacki battles through|
|Sanchez to United not done at all, insists Mourinho|
|Rafa sails through, Kyrgios books Dimitrov showdown|
|Emery refuses to indulge Neymar-Cavani penalty debate|
|Wozniacki battles past stubborn Bertens|
|Goretzka chose Bayern over England, Spain and Italy – Heynckes|
|BBBofC ready to lift Fury suspension|
|I would reject such players – Heynckes slams ´selfish´ Aubameyang|
|Kyrgios proves cool credentials to Will Smith in Tsonga win|
|Western Sydney Wanderers 0 Melbourne Victory 3: Barbarouses extends purple patch|
|Conte likes Dzeko but Chelsea have made no offer, says agent|
|Goretzka´s Bayern move good for Bundesliga, suggests Rummenigge|
|Root guides England home as Finch century proves in vain again|
|Walcott left Arsenal with his things in bin bags|
|Nadal breezes past Dzumhur in Melbourne|
|Schalke confirm Goretzka will join Bayern|
|Sergi Roberto renews Barca deal until 2022|
|Fernandinho seals extended Manchester City contract|
|Ceballos knee knock to be assessed after Real Madrid Copa win|
|O´Sullivan says snooker is ´weighted towards numpties´ as he repeats World Championship threat|
|Hamsik has no doubts over Napoli future|
|Corchia determined to repay Montella´s faith at Sevilla|
|Arsenal or Manchester United – who wins from the Sanchez-Mkhitaryan deal?|
|Black Caps survive Pakistan comeback to claim series sweep|
|Celtics lose without Irving as Cavaliers end skid|
|I can play against anyone, says 15-year-old Kostyuk|
|I would love to coach PSG – Mancini|
|Now an All-Star, Joel Embiid ´might have to pass´ on Rihanna|
|Merson: Mkhitaryan will be a sensation at Arsenal|
|Aussie debutant Carey replaces Paine for second ODI|
|Wins over substance for Varane and Real Madrid|
|Arsenal´s Giroud the answer for Chelsea, says Parlour|
|Rahm shoots 62 to lead CareerBuilder Challenge|
|Wenger: Sanchez exit won´t hurt like Van Persie|
|LeBron, Curry named captains for NBA All-Star game|
|Zidane hopes late Leganes win is turning point for Real Madrid|
|Magic´s Afflalo handed two-game ban for fighting|
|De Gea happy to delay Man Utd contract talks|
|Celtics guard Irving misses 76ers game with shoulder injury|
|LeBron James determined to work through ´very challenging´ Cavaliers season|
|Leganes 0 Real Madrid 1: Asensio´s late goal lifts pressure on Zidane in Copa quarter-final|
|Toulalan follows Gourvennec out of Bordeaux|
|Texans DE J.J. Watt showing positive signs with rehab|
|CC Sabathia likes the Yankees being a ´hated team´ again|
|UCI president wants Team Sky to suspend Froome|
|Dortmund´s Durm suffers torn ankle ligaments|
|Chelsea send Nathan to Belenenses on loan|
|Chelsea in talks over deal for Roma full-back Emerson|
|Gravel for breakfast but no worms on Dyche´s menu|
|Harden to return for the Rockets against the Timberwolves|
|Dybala is no Messi - Laudrup thinks comparisons are unfair|
|Jones insists weakened England can challenge for Six Nations hat-trick|
|McIlroy feeling ´a little different´ but happy with injury return|