Although Mo in October said he hoped his compatriot would be freed soon, he dodged questions on the issue at a news conference in the Swedish capital on Thursday, and indicated he had no plans to join a petition signed by 134 Nobel laureates calling for Liu's release.
In the traditional Nobel lecture, he said he was upset by the controversy following the announcement that he had won this year's literature prize.
"But over time I've come to realize that the real target was a person who had nothing to do with me. Like someone watching a play in a theater," he said, noting that "for a writer, the best way to speak is by writing. You will find everything I need to say in my works. Speech is carried off by the wind; the written word can never be obliterated."
Dedicating the speech to his late mother, the literature laureate focused on describing his poor upbringing in the rural eastern Chinese village of Gaomi. He said it was the place where he learned "what real courage is," and that it taught him to understand true compassion.
Most of his works are set in this rural environment, including probably his best known novel to English-language readers, "Red Sorghum" (1987), thanks in part to Zhang Yimou's acclaimed film adaptation. The novel has sold nearly 50,000 copies in the U.S., according to the publisher Penguin Group (USA), a strong number for a translated work.
His output has been prolific, which has contributed to his popularity and his impact, with books translated into English, Russian, French, German and many other languages, giving him an audience well beyond the Chinese-speaking world.
A popular writer in his homeland, the Nobel jury in Stockholm awarded him the 2012 prize for his ability to use the written word in a way that "with hallucinatory realism merges folk tales, history and the contemporary."
Among other highlighted works by the Nobel judges also were "Big Breasts & Wide Hips" (2004), "The Garlic Ballads," and "Frogs" (2009) that centers on forced abortions and other coercive aspects of the Chinese government's policies restricting most families to one child.
His fascination for words came at an early age when he was enthralled by the tales of wondering storytellers on market day. He began to embellish their narratives when repeating their stories at home and soon was making up his own fables.
His mother was fascinated by his stories, but wondered if he might one day "wind up prattling for a living."
Mo ended his lecture by saying that he is a story teller, which he said earned him the Nobel Prize in Literature, and that he would "continue telling stories in the days to come."
Along with the Nobel prize winners of physics, chemistry, medicine and economics, Mo will accept his award from Swedish King Carl XVI Gustaf at an awards ceremony in Stockholm on Monday.
The Nobel Peace Prize, which was awarded to the European Union this year, will be handed out in a separate ceremony in Oslo on the same day -- as stated in Alfred Nobel's will from 1895, when Norway and Sweden were in a union.
