Peter Andrew Hansen, 63, pleaded guilty in the NSW District Court in Sydney to 31 charges.
They include producing child pornography in Vietnam and the Philippines, distributing child exploitation material and engaging in sexual activity with nine boys.
The former Melbourne priest, Labor Party official and lawyer was arrested at Sydney airport in October 2018 on his way back from Vietnam.
After a day-and-a-half of reading his sentencing remarks, Judge Bennett jailed the fluent Vietnamese speaker on Friday for 19 years with a non-parole period of 14 years.
Former Catholic priest and Labor official Peter Andrew Hansen (pictured), 63, travelled to poor Asian countries to sexually exploit vulnerable boys
Peter Andrew Hansen, 63, has pleaded guilty to 31 child exploitation charges involving nine boys in the Vietnam and the Philippines, including abusing them and filming it for his own gratification.