TOKYO (AP) _ Turmoil in China provoked protests worldwide against the violent suppression of pro-democracy demonstrators in Beijing, while economic fallout from the crisis was building throughout Asia.

The unrest that left hundreds and perhaps thousands of people dead has seriously damaged the goodwill and trust once extended the Communist nation.

France, Holland and Sweden have barred diplomatic contacts with officials in China, while the United States, Britain and Switzerland banned military sales to Beijing.

China's Foreign Ministry today rebuked the United States for trying to exert pressure on China over what it said was a ''purely internal affair.''

Washington sells China more than $600 million of military equipment a year, and private U.S. dealers sell another $85 million. Officials would not provide Britain's military sales to China but Independent Television set the amount at $4.7 million a year.

Prime Minister Margaret Thatcher expressed ''utter revulsion'' at the Chinese crackdown and said, ''We will be thinking how best to demonstrate that in practical ways.''

The Dutch government summoned Chinese Charge d'Affaires Li Qin Ping and told him the Netherlands ''is exceptionally shocked by the violent and brutal actions of the Chinese People's Liberation Army.''

The 12-nation European Economic Community strongly condemned the Chinese action and appealed to authorities to stop using force.

In Moscow, members of the Congress of People's Deputies called on China's leaders to use ''wisdom, reason and a weighted approach'' but did not denounce the violence. The Soviet Foreign Ministry made no comment. The two communist giants are trying to mend fences after decades of estrangement.

Achille Occhetto, head of Italy's Communist Party, urged the Kremlin to take a strong stance against the massacre and distanced his party from the leaders responsible for the crackdown. Italy has the largest communist party in the West.

Meanwhile, Chinese students and others staged protests outside Chinese embassies in Seoul, Stockholm, Madrid, Abu Dhabi, Belgrade, the Hague, Athens and other cities.

In Hong Kong, authorities used tear gas to disperse 4,000 people in the twin city of Kowloon who tried to break into Chinese banks in the area and hurled stones and bottles at police this morning.

Singaporeans joined a movement started earlier in the week in Hong Kong to withdraw $32 million in deposits from Chinese banks out of fear and to protest the bloodshed in Beijing, bank officials said.

Wewe Cho Yao, president of a Singapore Chinese group, the Chinese Clan Associations, said the killings in China had shaken the confidence of foreign investors.

About 76 percent of the 2.6 million people in Singapore are ethnic Chinese.

In Hong Kong, wreaths were placed outside China's Xinhua News Agency office in memory of those who died in Beijing, and some people wore black armbands.

Authorities in Taiwan lifted a ban on telephone links to the Chinese mainland to encourage private contacts between people on both sides of the Taiwan Straits and to help break a news blackout inside China, Communications Minister Chang Chien-pang said.

The links will be through Hong Kong and will be operable within three days, he said.

The Nationalist government, which lost a civil war in China to the Communists in 1949, has lifted restrictions on visits to the mainland the past two years, although it continues to ban official contacts.

The Broadcasting Corporation of China, Taiwan's state radio station, kicked off a 24-hour news broadcast to China on shortwave channels with a hotline accepting telephone calls from Chinese listeners.

About 20 leaders of the opposition Democratic Progressive Party began a 15- day hunger strike to mourn the deaths in China, while in the central city of Miaoli, about 74 miles southwest of Taipei, 10,000 people rallied in protest.

Japanese Prime Minister Sousuke Uno, in remarks to Parliament, said ''leveling guns at the people is a grave matter.''

Japanese Vice Minister Ryohei Murata summoned Chinese Ambassador Yang Zhenya, and told him the situation in China was ''very regrettable,'' but Tokyo continued to view it as an ''internal affair,'' a ministry official said.

Negotiations on a $120 million loan for an oil project and another $250 million loan through the Asian Development Bank were cut off, said Teruo Takada, spokesman for the Federation of Bankers Associations of Japan.

Japan is the largest contributor of aid to China and the assistance, most in the form of loans, has totaled more than $6.1 billion during the 1980s.

Many governments have advised their citizens in China to leave the country as reports spread of Chinese soldiers battling each other in Beijing. Some, including Britain and Australia, have ordered the evacuation of non-essential diplomatic personnel and dependents.

The U.S. State Department urged the 1,440 Americans in Beijing to leave and made arrangements for U.S. airlines to fly them to safety.

Special flights also were arranged for Canadians, Australians, New Zealanders, Swiss and Hong Kong residents, among others.