The Reds took the lead through Grant Hanley’s own goal after just seven minutes, and the advantage was doubled by Mohamed Salah after 19 minutes.
Virgil van Dijk met Salah’s corner eight minutes later to extend the lead, with Divock Origi heading in just before half-time to make it four goals without reply.
Teemu Pukki earned a goal for Norwich’s attacking play when the Finland international slotted home after the hour mark.Liverpool rode their luck at times against Norwich at Anfield, but the UEFA Champions League holders were a force of nature in attack.
The Canaries appeared to lack any type of defensive plan, and they paid for their cavalier approach.
Anfield was celebrating in the opening minutes. Origi’s swift ball into the centre was stabbed home by Norwich skipper Hanley for an own goal past ‘keeper Tim Krul.
However, the error did not stop the visitors pouring forward at every opportunity, and before Salah scored the second for Liverpool, it seemed Norwich would equalise.
There were further defensive issues for the visitors when Van Dijk headed home Salah’s corner, making it 3-0.
Liverpool suffered a scare in the 37th minute when Reds goalkeeper Alisson Becker was forced off through injury. He was replaced by Adrian, with the former West Ham United stopper making his Reds debut.
Despite the injury, the match appeared all but over in the final minutes of the first half, and Origi made it even worse for Norwich after getting on the scoresheet with a header.
Strangely, the promoted side refused to change their plan at half-time. Norwich continued to play an attacking brand of football, peppering Adrian with shots. Liverpool’s defence weathered the storm across the match, but they were far from impressive at the back.
Norwich deserved their goal when it finally came in the second half, and Pukki suggested he might become a regular scorer in the top-flight with a cool finish.
It was a disjointed display from the European champions, and despite satisfaction gained from the result, the performance will be seriously scrutinised by manager Jurgen Klopp.