Liberal Dave Sharma and Labor's Josh Burns have joined forces to demand Israel extradite Malka Leifer back in Australia to face child sex charges.

The former-Melbourne school principal is facing 74 charges of rape and child abuse in Australia.

"To our friends in Israel we say: it is time to act. Do the right thing and support justice for victims in both our countries," Mr Sharma said.

"We have been exceptionally patient in this case, but enough is enough."

AAP

"Allegations of interference in this case, especially by the Israeli Minster for Health, Yaakov Litzman, are shameful," Mr Burns said.

The two men will jointly back a motion in parliament on Monday calling for Ms Leifer's immediate extradition, while praising Ms Leifer's alleged victims who have been advocating for her to face trial in Australia.

One of Ms Leifer's alleged victims, Dassi Elrich, welcomed the joint motion, saying she felt validated by the fact that the issue wasn't being ignored.

"It is important that this issue remains outstanding in the minds of the Israeli legal and political establishment," Ms Elrich said.

Australia requested Ms Leifer's extradition in 2014 after she fled the country in 2008, but she's remained in Israel while local courts determine if she's mentally fit to face trial.

The issue has dragged on through 63 court hearings.

In January, the Jerusalem District Court granted Ms Leifer's lawyers time to cross-examine a psychiatric panel who deemed her mentally fit.