The gorgeous, elegant and passionate "tango" dance originated in Argentina and is regarded as a national quintessence by Argentines. Argentine tango originated in the port area of Buenos Aires, Argentina. A large number of immigrants from Africa, North America and even Europe are stranded in the port, forming a special foreign social group. Most of them have low social status and unstable lives, and they kill time by singing and dancing in bars. At the beginning, it was originally a dance between men, and gradually changed to a dance between men and prostitutes in the port red light district, which evolved into an elegant and world-famous dance. Argentine tango is actually a special art form in this special environment, and its dance is based on various folk dances in Latin America and Africa such as Milonga, Habanella and Candombe. Argentine tango is actually very different from the tango performance we see in the national dance. It is actually an art form that sings more than dances. Moreover, its singing is all male, and it is all solo, occasionally interspersed with a few farce. The passionate keyboard accordion is the main theme of accompaniment, and its unique syncopation rhythm always gives people a spiritual impact. The Argentine tango has its own name Milonga. The Argentine tango is not like the tango in the national dance. The Argentine tango is the body of two partners standing side by side, almost sticking together (because of this intimate movement, it caused an uproar when the tango was introduced to Paris), and it is difficult for non-professionals to connect these movements quickly. Perhaps it is because it is too difficult to learn and the songs are too high and too few. The attitude of Argentines towards tango is somewhat similar to that of China people towards Peking Opera-older people are overjoyed, while young people stay away from it. Argentine tango dancers have brought us the elegant, free and easy, elegant and subtle dance and the music with distinctive syncopation and lively rhythm more than once, which aroused people's strong interest. When it comes to tango, people will naturally think of tango, an international standard dance seen in China, which has a strong sense of rhythm and a melody different from other music. The international tango evolved from the Argentine tango which combines dancing, singing and music, and there is an inevitable connection between them. However, the international tango has been standardized, while the Argentine tango is more lively, cheerful and colorful. Argentina is the hometown of tango. Argentines love tango. Many people can dance the tango, and tango dance music can be heard everywhere. Argentines regard tango as their national treasure and national pride. The Argentine government declared that tango is an inseparable part of Argentina's national cultural heritage. For foreigners, tango is just a unique dance step, but for Argentines, it is inseparable from life. Culture that melts in the blood. Tango can be sung, danced and played. It is a comprehensive art form that combines music, dance, singing and poetry. Because it is an integral part of the culture of the La Plata river basin, more precisely, tango should be an art form created by Montevideo people in Uruguay and Buenos Aires people in Argentina, and it is their cultural wealth. However, because Buenos Aires is a port city with advantages in terms of geographical location, population and influence in Europe, the tango gradually declined in Montevideo. Since Buenos Aires was once the gateway for a large number of immigrants, the music, dance, poetry and lyrics of tango have been influenced by many foreign cultures, especially European culture and African culture. Musically, the tango was mainly influenced by the Andalusian "Tandjyo" song and dance brought by Spanish sailors as early as around 185. Secondly, it is the influence of African black music, and the use of a large number of syncopations in tango music is the performance of this influence. Then there is the influence of gauchos's "Milonga" music. Guitar, as one of the indispensable instruments to play tango, is the symbol of this influence. Around 192, the influx of immigrants from Italy and Spain made great changes in tango music, from the early cheerful four or two beats to the slow-paced four or four beats suitable for expressing sad feelings. In terms of content, tango music and improvised lyrics were completely cheerful, cheerful, humorous and humorous at the end of last century and the beginning of this century. With the arrival of a large number of immigrants from Italy and Spain, its content has also changed. Immigrants come with the purpose of reclaiming land and getting rich, and finally they can only settle down and can't return to their hometown to reunite with their relatives, which adds melancholy, sadness and desolation to tango to express immigrants' yearning for their hometown and relatives. Since then, because most of the lyrics writers are descendants of immigrants, both the lyrics content and a large number of foreign slang used in the lyrics reflect the influence of foreign culture. In terms of dance, the embryonic form of tango originated from the strong solo dance of Argentine herder men, and was mainly influenced by African black dance during its formation. At the end of 18th century and the beginning of 19th century, selling slaves was very popular in America. At that time, a large number of African slaves also appeared in the La Paz River. Their bending and twisting movements in tango dance all originated from African dance movements. In addition, there is also the influence of Andalusia, Spain. On July 21, 21, Argentine President Cristina officially signed and promulgated the same-sex marriage bill previously passed by the Senate and the House of Representatives. Argentina became the tenth country in the world and the first country in South America to recognize same-sex marriage.