The police said that the man had arrived in the country yesterday from Qatar onboard a Qatar airline.
He was then searched based on information received that he was transporting banned items.
When the suspect was grilled by the police it was found that he had swallowed cocaine hidden in capsules.
The suspect was taken to the Negombo hospital and 30 cocaine capsules were removed from his belly.
The Philippines national has been kept under detention pending further investigations.