More than 100 Federal MPs have written to the Indonesian government asking for the death sentences on Myuran Sukumaran and Andrew Chan to be lifted.

In a letter to the Indonesian ambassador to Australia, sent last week, the MPs say the imminent execution of the two Bali Nine drug traffickers is of "deep concern".

The letter has been signed by 111 MPs, including chief Government whip Philip Ruddock, chief Opposition whip Chris Hayes, and Greens leader Senator Christine Milne.

"Mr Sukumaran and Mr Chan have demonstrated genuine remorse and have become model prisoners, working constructively at Kerobokan, not only on their own rehabilitation and reform, but also for that of other prisoners," the letter states.

"Also, we believe it is significant that both Mr Chan and Mr Sukumaran were only apprehended as a result of the Australian Federal Police providing information to Indonesian Police.

"Their crime, serious as it was, was intended to impact on Australians in Australia, not Indonesia."

The two Australians were sentenced to death by an Indonesian court in 2006 for trying to smuggle heroin out of the country and into Australia.

They are due to be executed this month.

Seven other Australians involved in the smuggling ring have been sentenced to life in prison in an Indonesian jail.

Despite pleas for clemency and petitions from the Australian government, members of the clergy and the men's distressed mothers, the Indonesian president has so far refused to grant them pardons.

The MPs "humbly request" that the prisoners' "rehabilitation, their suffering and their families' suffering" be considered.

"And upon the reasoning of the Indonesian Constitutional Court, we request that their death sentences be commuted to an appropriate term of imprisonment or that they be deported back to Australia on condition they face the criminal justice system here."

Labor MP Melissa Parke told Parliament today that her message to the Indonesian parliament was that the execution "will serve no useful purpose".

"Your country fights for mercy for your own citizens sentenced to the death penalty in other countries," she said.

"It is in your nation's interest to consider mercy for people on death row in Indonesia."

Ms Parke told Sukumaran and Chan that their "families and your country are proud of you".

"We are fighting for the wonderful human beings you have become."

She said she was also hoping to have Parliament pass a motion calling on Indonesia to commute the death sentences to a prison sentence.