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.
|Kvitova´s Wuhan quest ended by Pavlyuchenkova|
|Hummels impressed by ´incredible´ Sanches|
|Brewers benefit from Pirates´ trade deadline acquisition of Archer|
|Barty upsets Kerber in Wuhan|
|England could still pick Cipriani despite training camp snub|
|Astros become first defending champions to reach 100 wins since 1990 Athletics|
|Wilder waiting for ´real offer´ to fight Joshua|
|LeBron focusing on patience after first Lakers practice|
|Pochettino expects Spurs in new stadium by Christmas|
|Inzaghi: With Ronaldo, Juve are best team in Europe|
|Some people talk too much – Icardi hits back at critics|
|Kovac, Robben praise Augsburg after draw|
|Angels star Ohtani to undergo Tommy John surgery|
|Simeone tips Gimenez to be fit for Madrid derby|
|Smith on his NBA Finals miscue: People make mistakes all the time|
|Rams CB Talib to have ankle surgery|
|Cousins ´feeling a lot better´, still unsure when he´ll return|
|I knew we´d be in trouble with Jones on penalties – Mourinho|
|Coyotes forward Galchenyuk expected to miss opener|
|Guardiola won´t compare Foden to Iniesta|
|Lampard shell-shocked as Derby win at Old Trafford|
|Ryder Cup 2018: USA celebrities take the honours|
|Manchester United´s torrid penalty shoot-out run continues against Derby|
|Guardiola: Foden already a great, great player|
|Atletico Madrid 3 Huesca 0: Rojiblancos cruise ahead of Madrid derby|
|EFL Cup: Lampard dumps out Mourinho, Burnley lose at Burton Albion|
|Mourinho denies Pogba row despite stripping midfielder of vice-captaincy|
|Fabinho situation not complicated, insists Klopp|
|Manchester United 2 Derby County 2 (Derby win 8-7 on pens): Lampard heaps pressure on Mourinho|
|Afghanistan snatch tie after Shahzad pummels India|
|Inter 2 Fiorentina 1: D´Ambrosio maintains Nerazzurri revival|
|Oxford United 0 Manchester City 3: Foden stars as EFL Cup holders cruise into round four|
|Cousin takes Gabon post after Aubameyang rejection|
|Bayern Munich 1 Augsburg 1: Neuer error costs champions|
|Paris Saint-Germain must be a Champions League force to help Neymar - Baptista|
|Salgado warns of ´war´ in Spanish football|
|Cech deserves Arsenal place, says Seaman|
|Halep and Garcia among seeds to fall in Wuhan|
|F1 Raceweek: Mercedes taking no comfort in points advantage|
|Benitez charged by FA for referee comment relating to Zaha treatment|
|Cibulkova dumps out hampered Halep in Wuhan|
|Mourinho questions his players amid reports Pogba won´t captain United again|
|European Ryder Cup diary: Fleetwood´s hair delights Poulter|
|USA Ryder Cup diary: Tiger´s roaring reception, McEnroe´s bold prediction|
|Loans to be limited under new FIFA proposal|
|Prolific Nadolo signs new Montpellier contract|
|Modric? For us, Messi is the best – Valverde|
|Murray makes winning start in Shenzhen|
|Mickelson would cherish first victory on European soil|
|Hodge hoping pressure proves too much for South Africa|
|Woodward in show of support for under-fire Mourinho|
|Mickelson jokes he wants ´a shot a side´ from Tiger in Thanksgiving showdown|
|Reed: Captain America is a villain in Europe|
|Duminy to captain Proteas as Elgar replaces injured Amla|
|No Tottenham timeline for Lloris, Vorm returns|
|Woods ready for ´awesome environment´ on Ryder Cup opening hole|
|Tony Bellew determined to prove doubters wrong against Oleksandr Usyk|
|Tuchel explains why he likes Neymar at number 10|
|Manchester United smash revenue record but profits down|
|Furyk downplays Ryder Cup pairings talk, says Tuesday is about individuals|
|Rejuvenated Tiger out to improve poor Ryder Cup record|
|Saunders fined £100,000 for ´sickening´ online video|
|Hazard can reach his full potential with Sarri´s Chelsea - Zola|
|Ryder Cup heading back in Europe´s direction, says Niall Horan|
|Wow! Klopp hails Sarri´s Chelsea transformation|
|Giovinazzi to partner Raikkonen at Sauber in 2019|
|Bjorn backs ´phenomenal´ Rahm to continue trend of Spanish success|
|Durant in no rush to decide Warriors future|
|Rossi to face anti-doping hearing|
|Mignolet to return for Liverpool against Chelsea|