The foreign ministry statement came after the PGCC called for the withdrawal of foreign forces taking part in the conflict, and said President Bashar al-Assad should have no role in Syria's future, AFP reported.
The foreign ministry "strongly condemns the inflammatory rhetoric of the Council's statement on Syria, particularly as countries in the Council... support and practice terrorism," the statement said.
Persian Gulf Arab states, including Qatar and Saudi Arabia, actively support the militancy against Assad's government and have been fiercely criticized by the Syrian government for backing militants.
"Those who participated today in the summit in Kuwait, first among them the Saudi regime, have contributed in large part to the killing of Syrians and the destruction of their country," the ministry said.
"Their sorrow about the suffering of the Syrian people is nothing more than crocodile tears."
The PGCC, after two days of talks in Kuwait, called for the withdrawal of all foreign forces from Syria and accused Assad's government of committing "genocide".
The grouping also backed an opposition demand that Assad play no role in Syria's future.
Syria has been gripped by a deadly crisis since 2011. According to reports, the Western powers and their regional allies - especially Qatar, Saudi Arabia, and Turkey - are supporting the militants operating inside Syria.
More than 120,000 people have been killed and a total of 7.8 million others displaced due to the violence.
The Persian Gulf Cooperation Council includes Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates.
HH/HH