The 35-year-old has become something of a cult figure at Leigh after joining in the close season from Parramatta Eels.
“Fui has started his Leigh career with the consistently high standards that have seen him succeed at the very top for many seasons,” said Centurions head coach Paul Rowley.
“His hunger for success is strong and he has a strong drive to be a part of bringing success to the club.
“I am delighted to see Fui continue the journey with us by extending his current contract and am looking forward to seeing the ever increasing influence he has on the team.”
Leigh head of rugby Derek Beaumont believes that Moimoi’s presence has lifted the profile of the club massively.
“The signing of Fuifui Moimoi really did elevate this club to a different level,” he said.
“At the time there was always going to be an element of risk which I wanted to minimise by building in the option.
“Although Fui has more to give it is plain to see he is still the amazing player he always has been and I wanted him to have the comfort and security early on to really settle in.
“He is just as amazing off the field and is a massive part of our ‘Famileigh.’
“He is already, in such a short space of time, having a direct influence on the other boys and things can only get better with Fui in our camp.
“The way the fans have embraced him has been immense and he always shares a smile every time he hears them chant his name.”