Millions of Chinese people visit Thailand each year. The number of Chinese tourists in the country looks set to increase during the National Day holidays that began yesterday and run until next Wednesday.
"We must be on alert," Jakthip said Thursday. "We need to ensure safety."
He said strict surveillance had not detected any suspicious activity to date. There is no report that terrorists have entered Thailand either.
In August, two blasts hit Bangkok. The one at the Erawan Shrine caused 20 deaths and injured more than 100. Several of them were Chinese.
Police are still investigating the Bangkok bombings.
In the border province of Chiang Rai, Chiang Saen immigration chief Pol Natcharit Pinpak said he had deployed more officials at the immigration checkpoint to facilitate the inflow of people, which is set to increase during the Chinese holidays.