Culture Minister Sukumol Khunploem said on Monday that the programme had high ratings and people of all ages watched it.
The programme was televised when children were likely to be watching, she said.
"There must be limits on artistic expression. I was shocked when I saw the clip," Ms Sukumol said. "The ministry will meet the organisers of Thailand's Got Talent to get an explanation."
The show was a recording and not a live broadcast and the organisers could edit "inappropriate" content, she added.
The clip below, uploaded to YouTube by DuangAesthetic, shows a Thailand's Got Talent contestant removing her shirt and bra, pouring paint on her bare breasts and rubbing her body on a canvas.
One of the three judges said the act was inappropriate to the country's culture and expressed her disappointment with many of the audience who voiced their support for the 23-year-old contestant.
Two other judges said the woman passed the audition, saying the act was another type of artistic expression.
The contestant told the judges that if she painted normally there would be nothing special.
Source: Bangkok Post
