But JLM said the party should not "judge its own processes" after "years of acting in bad faith and administering a broken system".
It said it was "striking" that the party was releasing regular updates on its antisemitism investigations now it was under investigation over allegations of institutional antisemitism by the Equalities and Human Rights Commission (EHRC).
The party said that after rule changes passed at its conference in September to speed up disciplinary proceedings, twice the number of people were expelled in two months than the whole of 2018.
In 2018, 10 people were expelled and in 2017, one.
Apart from expulsions, a further 104 members left in 2019 while disciplinary proceedings relating to antisemitism were under way.
Disciplinary panels set up by the party’s national executive committee heard 274 cases relating to antisemitism last year - compared with 80 in 2018 and 28 in 2017.
Overall, the party recorded 773 cases relating to antisemitism in 2019 - compared with 428 in 2018.
Owing to the election, some complaints from last year are still being processed.
No action was taken in 255 cases in 2019 - compared with 133 in 2018.
Of the 773 cases, 296 people were suspended, 283 people received a notice of investigation and a further 184 received reminders about their behaviour.
Another 10 cases were subject to "auto-exclusion or general secretary rejection", meaning they were either ruled out or led to immediate automatic expulsion under party rules.
Labour said that a third of all the cases logged in 2019 have a single individual as the main complainant.
The party said the vast majority of complaints involved “social media activity”.
A Labour spokesperson said: “The reforms made by Jennie Formby as General Secretary have led to a significant increase in suspensions and expulsions.
"And under the new rapid expulsion powers proposed by Jeremy Corbyn, we have expelled twice the number of people for antisemitism in just two months than the whole of 2018.
“We know there is much more work to do and we will continue to publish regular updates on our progress.”
