In 2008, he became professor of Arts and Culture at the Institute of International Studies of the Mongolian Academy of Sciences. In 2015, the University of Arts and Culture, Mongolia granted him Honorary doctor for his achievement in literature. Mend-Ooyo started writing poems at the age of thirteen. In an interview for the WSJ he explains he became interested in writing, thanks in part to Dorjiin Gombojav. D.Gombojav was a controversial poet and translator who had alienated officials in Ulaanbaatar. He was sent, as punishment, to teach at the remote rural school Mend-Ooyo attended. Mend-Ooyo related to the interviewer that he wrote his first lines of poetry under D.Gombojav's guidance. "He taught me the importance of Mongolian language and our traditions," he says. In the late 1970s, he was one of the founder members of the underground literary group GAL ("Fire"). Mend-Ooyo explained that at the time, communist censors wouldn't let groups meet. "They were always watching us, so we had to be very careful and meet in people's homes at night." The GAL group, active in the late 1970s and early 1980s, included mainly Mend-Ooyo, Ochirbatyn Dashbalbar and D.Nyamsüren. Though GAL was "organised around the so-called Dariganga Three", others were at times involved as well. According to Simon Wickham-Smith, they "came to dominate the poetry scene during the subsequent ten or fifteen years, and their work is vital for a proper understanding of recent literary history in Mongolia." GAL transformed during the 1980s into an "independent flow of literary writing called "GUNU"", whose writers "nowadays exercise(s) the greatest influence on Mongolian literature." In the 1980s, Mend-Ooyo was allowed to publish some of his poetry after it was vetted by officials. Later, in 1988, Mend-Ooyo became a member of the Mongolian Writers' Union. In 1980, he published his first book of poetry, "The Bird of Thought". Many were to follow. After the 1990 Democratic Revolution in Mongolia and the end of single-party communist rule, he started to publish more of his work, "including the writing that espoused his pastoral roots and eventually became his best-known poems." Since his first book, he has published over twenty other books of poetry, and over a dozen novels and children's books.