The clarification came after reports of more than 130,000 Cambodian workers having fled back home from Thailand due to rumours that the junta would go after undocumented foreign labour, Xinhua reported.
NCPO deputy spokesman Winthai Suvari denied the crackdown, but added it was necessary for NCPO officials to inspect all areas where there are illegal foreign workers in a move to properly address the long-term issue.
Migrant workers must be properly documented so that they may work openly in Thailand rather than live in hiding from the authorities, Winthai said.
Solutions will be sought and implemented based on principles of upholding human rights and international standards in a bid to help both Thai businesses and foreign workers, he said.
Accordingly, migrant labour will be granted proper healthcare and supervision, Winthai said.
Official figures have shown that Thailand now accommodates around 440,000 registered Cambodian workers, but the exact number of unregistered ones remains unknown.