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| 1964, Feb. 25 |
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| Diplomatic sources disclosed that Sino-Soviet consultations regarding border disputes were in progress. | 1 |
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| March 1 |
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| Zhou Enlai returned from a goodwill tour of Burma, Pakistan, and Ceylon. | 2 |
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| April 19 |
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| An agreement with Japan was concluded, calling for the exchange of foreign correspondents and the establishment of unofficial trade relations offices. | 3 |
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| June 15 |
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| China and Yemen signed a ten-year friendship treaty. | 4 |
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| Oct. 16 |
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| China exploded its first atomic bomb. | 5 |
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| Nov. 5–13 |
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| Zhou Enlai visited Moscow, evidently in hope of improving relations with the Soviet Union following the downfall of Khrushchev. The discussions proved fruitless, if not actually damaging, because of conflicting territorial claims. Many border clashes followed. | 6 |
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