| Year | Month. | |
|---|
| 1955 | Apr. | Field Marshal P. Pibulsonggram visited Japan and signed the Cultural Accord |
| | Jul. | Thailand and Japan signed the Agreement on Special Yen Problem Resolution |
| 1957 | Jun. | Japanese Prime Minister Shinsuke Kishi officially visited Thailand |
| | Dec. | Thailand and Japan signed the Trade Agreement |
| 1959 | May. | Japan completed the payment amounting 5,400 million yen based on the Agreement on Special Yen Problem Resolution |
| 1961 | Nov. | Japanese Prime Minister Hayato Ikeda officially visited Thailand |
| 1962 | Jan. | Thailand and Japan signed the Special Yen Agreement |
| 1963 | Mar. | Thailand and Japan signed the Tax Treaty to Prevent Double Taxation |
| | May. | Their Majesties the King and Queen of Thailand officially visited Japan |
| 1964 | Dec. | TIH Crown Prince Akihito and Crown Princess Michiko officially visited Thailand |
| 1967 | Sep. | Japanese Prime Minister Esaku Sato officially visited Thailand |
| 1968 | Jan. | Thailand and Japan signed the exchange of note of the First Yen Loan |
| | May. | Thai Prime Minister Field Marshal Thanom Kittikachorn officially visited Japan |
| | Oct. | Thailand and Japan held the 1st Thai-Japanese Trade Joint-Committee in Bangkok |
| 1970 | Feb. | The Government of Thailand announced the revocation of the Commercial and Navigation Treaty with 17 countries including Japan |
| 1971 | Feb. | Thailand and Japan signed the Provisional Agreement on Thai-Japanese Trade and Navigation Treaty |
| | Jun. | TIH Crown Prince Akihito and Crown Princess Michiko made a private visit to Thailand |
| | Nov. | HRH Prince Vajiralongkorn unofficially visited Japan |
| 1972 | Nov. | The Student Federation of Thailand launched an Anti-Japanese Products Campaign |
| 1974 | Jan. | Japanese Prime Minister Kakuei Tanaka officially visited Thailand |
| 1976 | Jun. | TIH Crown Prince Akihito and Crown Princess Michiko made a private visit to Thailand |
| 1977 | Aug. | Japanese Prime Minister Takeo Fukuda officially visited Thailand |
| | Sep. | Thai Prime Minister Thanin Kraivixien officially visited Japan |
| 1979 | Jan. | Thai Prime Minister Gen. Kriangsak Chomanan officially visited Japan |
| 1980 | Jul. | Thai Prime Minister Gen. Prem Tinsulanonda paid an unofficial visit to Japan |
| | Dec. | HIH Prince Hironomiya Naruhito made a private visit to Thailand |
| 1981 | Jan. | Japanese Prime Minister Zenko Suzuki officially visited Thailand and signed the Agreement on Japan Overseas Volunteer Dispatch |
| | Feb. | TIH Crown Prince Akihito and Crown Princess Michiko made a private visit to Thailand |
| | Mar. | Her Majesty Queen Sirikit paid a private visit to Japan |
| | Nov. | Thai Prime Minister Gen. Prem Tinsulanonda officially visited Japan and signed the Agreement on Technical Cooperation |
| 1983 | Mar. | TIH Crown Prince Akihito and Crown Princess Michiko made a private visit to Thailand |
| | May. | Japanese Prime Minister Yasuhiro Nakasone paid an official visit to Thailand |
| | Oct. | HRH Princess Maha Chakri Sirindhorn made a private visit to Japan |
| 1985 | Mar. | HIH Princess Chichibu made a private visit to Thailand |
| | Aug. | HIH Prince Ayanomiya Fumihito made a private visit to Thailand |
| 1986 | Aug. | HIH Prince Ayanomiya Fumihito made a private visit to Thailand |
| 1987 | Mar. | HIH Prince Hironomiya Naruhito made a private visit to Thailand |
| | Aug. | HRH Princess Chulaborn made a private visit to Japan |
| | Aug. | HIH Prince Ayanomiya Fumihito made a private visit to Thailand |
| | Sep. | HRH Crown Prince Maha Vajiralongkorn paid an official visit to Japan |
| | Sep. | Japanese Prime Minister Yasuhiro Nakasone made an official visit to Thailand |
| | Oct. | Gen. Prem Tinsulanonda made a private visit to Japan |
| 1988 | Jan. | TIH Prince and Princess Hitachi made an official visit to Thailand |
| | Jan. | HRH Princess Chulaborn made a private visit to Japan. |
| 1989 | Feb. | HRH Crown Prince Maha Vajiralongkorn and Prime Minister Gen. Chatichai Choonhavan visited Japan to attend the funeral ceremony of His Majesty Emperor Hirohito |
| | Apr. | HRH Princess Chulaborn made a private visit to Japan |
| | Apr. | Prime Minister Noboru Takeshita made an official visit to Thailand |
| | Jul.- Aug. | HIH Prince Ayanomiya Fumihito made a private visit to Thailand |
| | Oct. | HRH Princess Galyani Vadhana made an official visit to Japan |
| | Dec. | HRH Princess Chulaborn made a private visit to Japan |
| 1990 | Apr. | Prime Minister Gen. Chatichai Choonhavan made a private visit to Japan |
| | Jun. | HRH Princess Maha Chakri Sirindhorn made a private visit to Japan |
| | Aug. | TRH Princess Soamsawali and Princess Bajrakitiyabha made a private to Japan |
| | Nov. | HRH Crown Prince Maha Vajiralongkorn and Gen.Chatichai Choonhavan visited Japan to attend the Coronation Ceremony of His Majesty Emperor Akihito |
| 1991 | Apr. | Prime Minister Toshiki Kaifu made an official visit to Thailand |
| | Sep. | Their Majesties Emperor Akihito and Empress Michiko made an official visit to Thailand |
| | Dec. | Prime Minister Anand Panyarachun made an official visit to Japan |
| 1992 | Feb. | HIH Prince Takamado made a private visit to Thailand |
| | Sep. | HIH Prince Akishino made a private visit to Thailand |
| | Nov. | TIH Prince Akishino and Princess Kiko made an official visit to Thailand |
| 1993 | Jan. | Prime Minister Kiichi Miyazawa made an official visit to Thailand |
| | Apr. | Her Majesty Queen Sirikit made a private visit to Japan |
| 1994 | Sep. | Prime Minister Chuan Leekpai made an official visit to Japan |
| | Nov. | TIH Crown Prince Naruhito and Crown Princess Masako stopped over in Thailand |
| | Nov. | HRH Princess Maha Chakri Sirindhorn made a private visit to Japan |
| | Nov. | HIH Princess Norinoniya Sayako made a private visit to Thailand |
| 1995 | Jan.-Feb. | HRH Princess Chulabhorn made a private visit to Japan |
| | Sep. | TIH Prince Akishino and Princess Kiko made a private visit to Thailand |
| | Oct. | HRH Princess Chulaborn made a private visit to Japan |
| | Nov. | Prime Minister Banharn Silpa-Archa went to Japan to attend the APEC meeting in Osaka |
| | Nov. | HRH Princess Chulaborn made a private visit to Japan |
| 1996 | Feb. | Japanese Foreign Minister Yukihiko Ikeda visited Thailand to attend the Asian Foreign Ministers' meeting for Asia - Europe Summit (ASEM) in Phuket |
| | Feb. | Minister for International Trade and Industry Chunpei Tsukahara visited Thailand to attend the Asian Economic Ministers ASEM |
| | Feb.-Mar. | Prime Minister Ryutaro Hashimoto visited Thailand to attend ASEM |
| | Mar. | TIH Prince Akishino and Princess Kiko visited Thailand to attend the royal cremation ceremony of HRH the Princess Mother |
| | Apr. | HIH Prince Akishino made a private visit to Thailand |
| | Aug.-Sep. | TIH Prince and Princess Hitachi made an official visit to Thailand |
| | Nov. | HRH Princess Chulaborn made a private visit to Japan |
| | Dec. | Princess Ubol Ratana Rachakanya made a visit to Japan to attend a concert for celebrating His Majesty the King's Golden Jubilee |
| 1997 | Jan. | President of the Japanese House of Councilors Juro Saito made an official visit to Thailand |
| | Mar. | HRH Princess Chulaborn made a private visit to Japan |
| | | TIH Prince Akishino and Princess Kiko made a visit to Thailand |
| | May. | Her Majesty the Queen made a private visit to Japan |
| | Sep. | Japanese Finance Minister Hiroshi Mitsuzuka visited Thailand to attend the ASEM Finance Ministers' Meeting |
| | Oct. | Thai Prime Minister Gen. Chavalit Yongchaiyudh made an official visit to Japan |
| 1998 | May. | Japanese Foreign Minister Keizo Obuchi made an official visit to Thailand |
| | Dec. | Thai Foreign Minister Surin Pitsuwan made an official visit to Japan |
| | | HIH Prince Tomohito visited Thailand to observe the Asian Games |
| 1999 | Jul. | TIH Prince Akishino and Princess Kiko made an official visit to Thailand to celebrate the 72nd Birthday of His Majesty the King |
| | Oct. | Thai Prime Minister Chuan Leekpai visited Japan as an honoured guest of MOFA to attend an APIC seminar |
| | Oct. | President of the Senate Mr. Meechai Ruchupan made an official visit to Japan |
| 2000 | Jan. | Japanese Prime Minister Keizo Obuchi and Mrs. Obuchi made an official visit to Thailand (They also visited Cambodia and Laos) |
| | Feb. | Japanese Prime Minister Keizo Obuchi visited Thailand to attend the UNCTAD 10 |
| | Jun. | Thai Prime Minister Chuan Leekpai visited Japan to attend the funeral of Prime Minister Keizo Obuchi |
| | Jul. | Thai Foreign Minister Surin Pitsuwan visited Japan to meet G8 foreign ministers in Miyazaki |
| | Jul. | Thai Prime Minister Chuan Leekpai, Deputy Prime Minister and Minister of Commerce Mr. Supachai Panitchpakdi and Foreign Minister Surin Pitsuwan visited Japan to attend the Kyushu-Okinawa Summit (to join the dialogue between the leaders of G8 and some developing countries) |
| | Jul. | HRH Princess Maha Chakri Sirindhorn visited Japan to attend the funeral of HM the Empress Dowager, whose posthumous name is Empress Kojun. |
| | Jul. | Japanese Foreign Minister Yohei Kono visited Thailand to attend the ASEAN+3 Foreign Ministers Meeting, the ARF and the PMC |
| 2001 | Aug. | TIH Prince Akishino and Princess Kiko visited Thailand to attend Honorary Doctorate Degree Conferment Ceremonies at Srinakharinwirot University and Chulalongkorn University. |
| | Oct. | HRH Princess Maha Chakri Sirindhorn visited Japan to attend Gakushuin University's Honorary Doctorate Degree Conferment Ceremony. |
| | Oct. | HRH Princess Chulaborn made a private visit to Japan |
| | Nov. | Thai Prime Minister Pol.Lt.Col. Thaksin Shinawatra made an official visit to Japan |
| 2002 | Jan. | Japanese Prime Minister Junichiro Koizumi made an official visit to Thailand (He also visited the Philippines, Malaysia, Indonesia and Singapore) |
| | Apr. | HRH Princess Galyani Vadhana Krom Luang Naradhivas Rajnagarindra made a private visit to Japan |
| | Apr. | Princess Ubol Ratana made a private visit to Japan |
| | Jun. | Japanese Foreign Minister Yoriko Kawaguchi visited Thailand to attend the Asia Cooperation Dialogue (ACD) at Cha-am. |
| 2003 | Jun. | Japanese Foreign Minister Yoriko Kawaguchi visited Thailand to attend the The Second Asia Cooperation Dialogue (ACD) at Chiang Mai |
| | Aug. | TIH Prince Akishino, Princess Kiko, Princess Mako and Princess Kako visited Thailand to attend Honorary Doctorate Degree Conferment Ceremony at Ubonratchathani University. |
| | Oct. | Japanese Foreign Minister Yoriko Kawaguchi visited Thailand to attend the 15th APEC Ministerial Meeting |
| | Oct. | Japanese Prime Minister Junichiro Koizumi visited Thailand to attend the 11th APEC Economic Leaders Meeting |
| | Dec. | Thai Prime Minister Pol.Lt.Col. Thaksin Shinawatra visited Japan to attend the ASEAN-Japan Commemorative Summit Meeting |
| 2005 | Jan. | Mr. Nobutaka Machimura, Minister for Foreign Affairs, to visit Indonesia and Thailand |
| | May. | Mr. Shoichi Nakagawa, Minister for Economy, Trade and Industry, to visit Thailand |
| | May. | Dr. Kantathi Suphamongkhon, Minister of Foreign Affairs of Thailand, to visit Japan |
| | May. | HRH Princess Galyani Vadhana Krom Luang Naradhivas Rajnagarindra made a private visit to Japan |
| | Aug. | Mr. Shoichi Nakagawa, Minister for Economy, Trade and Industry, to visit Thailand |
| | Aug. | HIH Prince Akishino made a private visit to Thailand |
| | Aug. | Mr. Somkid Jatusripitak, Deputy Prime Minister and Minister of Commerce, to visit Japan for attending Thai National Day on Expo, Aichi |
| | Aug. | Thai Prime Minister Pol.Lt.Col. Thaksin Shinawatra visited Japan for FTA deal |
| | Dec. | Dr. Kiyohiko Toyama, Parliamentary Secretary for Foreign Affairs, to visit Thailand and Cambodia |
| 2006 | Jan. | Mr. Yasuhisa Shiozaki, Senior Vice-Minister for Foreign Affairs, to visit Philippines, Thailand and Indonesia |
| | May. | Dr. Kantathi Suphamongkhon, Minister of Foreign Affairs of Thailand, to visit Japan |
| | Jun. | Their Majesties the Emperor and Empress of Japan visited Thailand |
| | Aug. | HRH Princess Maha Chakri Sirindhorn visited Japan |
| | Oct. / Nov. | HRH Princess Chulaborn visited Japan in October and November |
| 2007 | Mar. | HIH Prince Akishino visited Thailand |
| | Apr. | Prime Minister Gen. Surayud Chulanont paid a official visit to Japan |
