Nationals MP Trevor Khan has made an emotional plea to the New South Wales Parliament on the introduction of the Voluntary Assisted Dying Bill, revealing his terminally ill father asked to die.

The bill, which has been prepared by a multi-party working group over the past two years, requires that patients must have a terminal illness, have less than a year to live, be over the age of 25 and experiencing severe pain.

Patients would also need to be residents of NSW and would be assessed by several independent medical practitioners and psychiatrists.

The bill is designed to provide a legislative framework for assisted dying and will be debated later in the year with a decision to be made by a conscience vote.

Mr Khan said his father suffered a debilitating stroke which left him incapacitated and bedridden in a nursing home for three and a half years.

"He asked me and my sisters to assist him to die," he said.

"He asked us to help kill him. But we refused. It was an ignoble and undignified end for a man who had such dignity in life.

"Mr President, for me and for others in this place and for so many in our community this is deeply personal.

"Too many of us have watched or cared for a loved one with a debilitating illness and seen them die a horrible and undignified death."

A Voluntary Assisted Dying Bill will be introduced by Nationals MP Trevor Khan. ( Flickr: Postman76 )

The bill requires that a patient must be:

At least 25 years of age and a New South Wales resident

At least 25 years of age and a New South Wales resident Suffering from a terminal illness which in reasonable medical judgement will result in the death of the patient within 12 months

Suffering from a terminal illness which in reasonable medical judgement will result in the death of the patient within 12 months Experiencing severe pain, suffering or physical incapacity to an extent deemed unacceptable to the patient

Eligible patients must be assessed by:

A primary medical practitioner

A primary medical practitioner A medical specialist

A medical specialist An independent qualified psychiatrist or psychologist

Patients would then be allowed to self-administer a lethal substance to end their lives, they can also be assisted by a medical practitioner or nominated person.

In his Upper House speech, Mr Khan urged his fellow members to give the bill proper consideration.

"Terminally ill people at the final stages of their lives will be able to die on their own terms. At a time and place of their own choosing with a chance to farewell their loved ones. They'll be able to take control of the end of their lives. We hope we can ease the suffering of the terminally ill."