Embattled Liberal MP Gladys Liu has requested her party pay back at least $100,000 she donated to her campaign to win the marginal Melbourne seat of Chisholm.

Ms Liu contributed the money to her own election campaign in the lead-up to the May 18 poll after she was told by the Liberal Party more money was needed to hold on to the seat.

Liberal MP Gladys Liu contributed at least $100,000 to her own election campaign. Credit:Alex Ellinghausen

Several sources within the party's Victorian branch have confirmed the Hong Kong-born MP in recent months has asked for the six-figure sum to be paid back, claiming the payment was a loan.

Senior party officials have pushed back against the request, saying they were not told the donation was a loan when it was made at the start of the election campaign.