The Islington North MP extended last year's winning margin after attracting 313,309 votes, which amounts to a share of 61.8 per cent.
The figure put Corbyn comfortably ahead of challenger Owen Smith who received 193,229 votes.
A total of 506,438 Labour party members cast their votes, also beating earlier estimates.
"I want to thank the more than 300,000 supporters who have given me their support and trust in this Labour Leadership election," Corbyn said.
"I'm honoured to have won the votes of a majority of members, affiliated supporters and registered supporters who have given me a second mandate in a year to lead our party."
It comes despite mounting concern that Corbyn would be unable to provide the leadership and direction necessary for Labour to win a General Election.
Former one-time Labour leadership favourite David Miliband said earlier this week that: "the main charge against Jeremy Corbyn is not just that his strategy is undesirable because it makes the party unelectable."
"That is only half the story. The real issue is that his strategy makes the party unelectable because it is in many aspects undesirable.
"Now Labour sits a long way from power, even before boundary changes. The ultimate ignominy of not being able to organise our own party conference has been avoided, but we have not been further from power since the 1930s."